HIGH-Tc UPDATE E-MAIL VERSION, VOL. 13, NO. 22, Nov. 15, 1999.
<p>
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<p>
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<p>
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<p>
 PLEASE NOTE: Issues of High-Tc Update can be sent as an e-mail
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<p>
 PLEASE READ: The electronic-mail version of High-Tc Update is generated
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 <hr>
<p>
 NOTA BENE:
<p>
 Dear Subscribers,
<p>
 We are grateful to all of you who submitted pledges to the High-
 Tc Update during our experiment to determine whether we could continue
 operating on a subscriber-supported basis. A big thank-you also to the
 organizations who pledged funds ranging from $500 to $5000 for the
 newsletter project. Unfortunately, the total funds pledged would cover
 only about a third of our operating costs, well below what was needed to
 sustain the newsletter. We therefore release you from your pledges.
 >From this point on, we plan to run on reserve funds for as long as
 feasible. We will let you know when our last issue will be published.
<p>
 Sincerely,
 Sreeparna Mitra
 John R. Clem
<p>
 <hr>
<p>
 RBa2Cu3O7-d
<p>
 The pressure dependence of the in-plane, chain, and out-of-plane
 resistivity of untwinned crystals of YBa2Cu3O7-d under hydrostatic
 pressure P up to 2 GPa has been investigated by K. Yoshida (SRL-ISTEC)
 et al. The authors observed a dramatic decrease in all the resistive
 components and the disappearance of the rho_c(T) upturn with increasing
 P, and they report that this can be explained by assuming that applied
 pressure induces additional carriers in both the CuO2 planes and the CuO
 chains, similar to the effect of chemical doping. The authors stress
 that the conventional model of carrier transfer from the chains to the
 planes needs to be reexamined.
<p>
 A study of flux jumps in unirradiated and 7.5 x 10^[10] Kr-ion/cm^2
 irradiated (YxTm1-x)Ba2Cu3O7-d single crystals has been carried out by
 J. Vanacken (Leuven) et al. Using pulsed-field magnetization
 measurements at field-sweep rates from 0.1 T/s to 1800 T/s, the authors
 found that flux jumps depend on the magnetic field, the magneto-thermal
 history of the sample, the magnetic-field sweep rate, the critical
 current density Jc, the temperature, and the thermal contact between the
 sample and the bath.
<p>
 The peak effect in YBa2Cu3O7-d (Y-123) bulk superconductors containing
 both Y-123 and Y2BaCuO5 (Y-211) phases has been studied by H. Suematsu
 (Tokyo Tech) et al. The authors found that (a) Y-211 particles have
 nothing to do with the peak effect while (b) the inter-twin-boundary
 distance is undoubtedly correlated with the peak effect.
<p>
 An infiltration process for the fabrication of Y-123 superconducting
 materials with the dimensions of a thick film and the microstructure of
 a melt-textured single-domain bulk has been developed by E. Sudhakar
 Reddy et al. (ACCESS). The process starts with Y2O3 cloth as a
 precursor material. The cloth is infiltrated with barium cuprates and
 copper oxides from a liquid-phase source, then converted into the Y-211
 phase, and finally into the Y-123 phase.
<p>
 A preprint by P. Diko (Kosice) and K. C. Goretta (Argonne) reports that
 Y-211 macroinhomogeneity is the main source of macrostresses in single-
 grain melt-grown Y-123 bulks. The authors also report that macrocracks
 in multi-grain melt-grown 123-211 bulks develop under the influence of
 stresses between 123 grains during cooling due to the anisotropy of the
 123-phase thermal expansion.
<p>
<p>
 Bi Cuprates
<p>
 As noted by A.I.M. Rae (Birmingham), recent experimental studies of
 Josephson tunneling between single crystals of Bi2Sr2CaCu2O8+d (Bi-2212)
 and lead (Pb) films have revealed small, but finite, critical currents
 along the c-axis of Bi-2212, despite such Josephson tunneling being
 forbidden by symmetry. The author shows that the known anisotropy of
 the Pb order parameter would allow quite strong coupling between single
 crystals of Bi-2212 and Pb if the tunneling direction were along the Bi-
 2212 c axis and the [110] direction of the Pb crystal. This mechanism
 could account for the experimental results on granular Pb films if there
 is as little as a few percent preferred orientation in the films, or if
 time-reversal symmetry is broken at the grain boundaries of the Pb film.
 The author thus stresses that all the experimental evidence is therefore
 consistent with Bi-2212 being a pure d-wave superconductor.
<p>
 The fabrication of well-defined c-axis Bi-2212/Au/Nb junctions on
 cleaved surfaces of a Bi-2212 single crystal and the observation of
 current-voltage characteristics typical for Josephson tunnel junctions
 are reported by I. Kawayama (Osaka) et al. The magnetic-field
 dependence of the supercurrent showed that the zero-bias current is not
 leakage from pinholes but a Josephson current. The authors argue that
 the results strongly indicate the presence of an s-wave component in Bi-
 2212. The temperature dependence of the Josephson current suggests that
 the superconducting gap for the s-wave component in Bi-2212 is about
 10^[-3] of the d-wave component, and that the Tc of the s-wave component
 is about 10 K.
<p>
 Measurements of anomalously large dissipative conductivities sigma_1 in
 Bi-2212 at low temperatures are reported by J. Corson (LBNL and UC-
 Berkeley) et al. The authors measured the complex conductivity of Bi-
 2212 thin films at 100-600 GHz as a function of doping from the
 underdoped to the overdoped state. At low temperatures there exists a
 residual sigma_1, which scales with the T = 0 superfluid density as the
 doping is varied. This residual sigma_1 is larger than the possible
 contribution to sigma_1 from a thermal population of quasiparticles at
 the d-wave gap nodes.
<p>
 The dependence of the irreversibility field H_[irr] on the concentration
 and distribution of holes in the Bi2Sr2Ca1-xYxCu2O8+d (Bi-2212) system
 has been investigated by M. Kotiranta (Tokyo Tech) et al. With
 increasing x, a continuous increase in the oxygen content and decrease
 in the thickness of the SrO-Bi2O2+d-SrO blocking layer were observed.
 The extra oxygen taken into the structure only partially counteracts the
 trivalent-Y to divalent-Ca substitution, and consequently the hole
 concentration in both blocks was found to decrease. With increasing x
 and d, H_[irr] was not enhanced but rather was suppressed. This
 suggests that the thickness of the blocking layer is not the primary
 parameter in determining the irreversibility line.
<p>
 A theoretical analysis in terms of indirect exchange pairing has been
 given by L. Jansen (ETH-Zurich) and R. Block (Amsterdam) for the effect
 of iodine intercalation on the superconducting transition temperature Tc
 in the high-Tc series Bi2Sr2CaN-1CuNO2N+4+d (N = 1, 2, and 3) and in the
 Y-doped N = 2 compound. The authors conclude that iodine intercalation
 leads to removal of oxygen anions from inside (BiO)2 bilayers and
 migration of these oxygens to the CuO2 layers as the only effect; i.e.,
 neither a proposed hole transport nor weakening of interlayer coupling
 takes place. The authors obtain results in quantitative agreement with
 experimental values of Tc vs x in pristine and intercalated Bi2Sr2Ca1-
 xYxCu2O8+d.
<p>
 A comparison experiment has been carried out by W. P. Chen (CREST,
 Tsukuba) et al. to study the effect of magnetic melt processing on
 fabrication of Bi-2212 tapes. Vertical magnetic fields H_a up to 10 T
 were applied during the melt processing of dip-coated monolayer Bi-
 2212/Ag tapes (over 60 micrometers in thickness), which were set
 horizontally or vertically. The authors found that in the horizontally
 set tapes both the texture development and the transport critical
 current density Jc were enhanced as the magnetic field H_a increased up
 to 7.5 T. However, when H_a was further increased from 7.5 to 10 T, Jc
 was found to decrease sharply. The reason for this is unclear.
<p>
<p>
 Other Cuprates
<p>
 A preprint by C. W. Chu (TCSUH) et al. reports a systematic
 investigation of the magnetic, electrical, and structural properties of
 RuSr2GdCu2O8 (Ru-1212), in which long-range ferromagnetic order and
 superconductivity previously have been reported to coexist. From the
 magnetic measurements, the authors conclude that the bulk Meissner state
 does not exist in this compound. The authors suggest that the absence
 of a bulk Meissner state may be attributed either to the appearance of a
 spontaneous vortex state in the superconducting ferromagnet RuSr2GdCu2O8
 or to the presence of a minor superconducting phase in an otherwise
 nonsuperconducting ferromagnet.
<p>
 Measurements of the out-of-plane resistivity rho_c of La2-xSrxCuO4 under
 anisotropic pressure are reported by F. Nakamura et al. (Hiroshima).
 The authors found that c-axis compression, which decreases rho_c,
 drastically reduces Tc, whereas c-axis expansion, which increases rho_c,
 enhances Tc from 38 K at ambient pressure to 51.6 K at 8 GPa. The
 authors find that the variation of Tc scales as a function of rho_c, and
 that the c-axis pressure coefficient is much stronger than that for the
 ab axis. The authors suggest that interlayer expansion enhances two-
 dimensionality, which in turn raises Tc.
<p>
 Two novel homologous series of superconductive M-m2(n-1)n cuprates in
 the Ba-Ca-Cu-O system with the charge-reservoir block consisting of
 either peroxide-type oxygen [02(n-1)n phases] or water [H-m2(n-1)n
 phases] are reported by M. Karppinen (Tokyo Tech and Helsinki University
 of Technology) et al. The former phases with Tcs higher than 100 K were
 obtained using high-pressure synthesis under oxidizing conditions. When
 exposed to air, the latter phases spontaneously form from the highly
 unstable 02(n-1)n phases by incorporation of H2O molecules.
<p>
 As reported by H. Yamauchi (Tokyo Tech) and M. Karppinen (Tokyo Tech and
 Helsinki University of Technology), control of the hole distribution in
 the layered cuprates is essential to tailoring fundamental
 superconducting properties such as Tc, the irreversibility line H_[irr],
 and the peak effect. Employing the bond-valence-sum (BVS) concept, the
 authors show that there are three different routes for doping the CuO2
 planes with holes, and that the more confined holes are in the middle of
 the CuO2 plane stack, the higher the Tc is. The authors show that in
 the Cu(Ba,Sr)2(Yb,Ca)Cu2O6+z system, the distribution of holes is
 different depending upon the hole-doping route used, and they find that
 the more homogeneous the hole distribution along the c axis is, the
 better the H_[irr] characteristics are.
<p>
 A preprint by J.-Y. Genoud (NZIIR-Lower Hutt) et al. reports
 measurements of the Raman spectra of a high-quality YBa2Cu4O8 single
 crystal grown in an inert BaZrO3 crucible, including studies of changes
 in the electronic background at temperatures from 10 K to 300 K.
 Although the authors observed no temperature dependence in the XY
 (B_[2g]) geometry, they found a clear superconductivity-related
 depletion of the electronic scattering in the X'Y' (B_[1g]) geometry at
 low frequencies below Tc, from which the authors determined a maximum
 gap of approximately 650 cm^[-1]. The authors also found a depletion
 that takes place over a much larger frequency range and appears at
 higher temperature, which the authors associate with a normal-state gap.
<p>
<p>
 Vortices
<p>
 The dependence on the magnetic field B || c and the temperature T of the
 interlayer quasiparticle conductivity sigma_q in a Josephson-coupled d-
 wave superconductor has been calculated by I. Vekhter (Guelph) et al.
 The authors consider a clean superconductor with resonant impurity
 scattering and a dominant coherent interlayer tunneling. When pancake
 vortices in adjacent layers are weakly correlated at low T, the
 conductivity increases sharply with B before reaching an extended region
 of slow linear growth, while at high T it initially decreases and then
 reaches the same linear regime. For correlated pancakes, sigma_q
 increases much more strongly with the applied field.
<p>
 The dynamical vortex response of a two-dimensional array of resistively
 shunted Josephson junctions in a perpendicular magnetic field has been
 studied by B. J. Kim and P. Minnhagen (Umea) using simulations. As a
 function of magnetic field the response is found to cross over from
 normal to anomalous, and the authors discuss how this crossover should
 be reflected in measurements of the complex impedance for Josephson-
 junction arrays and superconducting films.
<p>
<p>
 Flux Penetration
<p>
 The magnetic remanence exhibited by Josephson-junction arrays subjected
 to an ac magnetic field has been studied by W.A.C. Passos et al. (Sao
 Carlos). The authors measured the predicted magnetic remanence of
 Josephson-junction arrays using a 3D disordered Josephson-junction array
 fabricated from granular Nb.
<p>
 The critical state of a nonuniform type-II superconductor has been
 analyzed by A. Yu. Galkin (Kiev) et al. using a model superconductor
 divided into periodic layers with different values of the critical
 current density. The dependence of the magnetic moment on the external
 magnetic field B_e differs significantly from the dependence predicted
 by the Bean model for a homogenous superconductor.
<p>
 The magnetic response of superconductors in the presence of low values
 of a uniform applied magnetic field has been studied by F. M. Araujo-
 Moreira (Sao Carlos) et al. Using Nb cylinders of different length-to-
 radius ratios, the authors carried out measurements of the dc
 magnetization and ac magnetic susceptibility, which showed a dramatic
 enhancement of the initial magnetization for thin samples due to
 demagnetizing effects. The authors analyze the experimental results in
 terms of a model that allows the magnetic response of perfectly
 diamagnetic cylinders to be calculated with high precision.
<p>
 Magnetization hysteresis loops and the ac susceptibility chi = chi' +
 ichi" of a superconducting thin disk have been calculated by D. V.
 Shantsev (Oslo and St. Petersburg) et al. using a critical-state model
 allowing for a field-dependent critical current density Jc(B). The
 results are obtained by numerically solving a set of coupled integral
 equations for the flux and current distributions in a disk placed in a
 perpendicular applied magnetic field B_a.
<p>
<p>
 Films
<p>
 As stressed in a preprint by L. Trappeniers (Leuven) et al., the normal-
 state resistivity of high-temperature superconductors can be probed in
 the region below Tc by suppressing the superconducting state in high
 magnetic fields. In this preprint, the authors present the normal-state
 properties of YBa2Cu3O7-d thin films in the underdoped regime and the
 normal-state resistance of La2-xSrxCuO4 thin films under epitaxial
 strain, measured below Tc by applying pulsed fields up to 60 T. The
 authors interpret the data in terms of a recently proposed 1D quantum
 transport model with the 1D paths corresponding to the charge stripes.
 A related paper by J. Vanacken (Leuven) et al. compares these results
 with transport data for the Sr2.5Ca11.5Cu24O41 spin-ladder compound.
<p>
 The growth conditions and microstructure of Y2O3 buffer layers on cube-
 textured Ni have been studied by A. Ichinose (Wisconsin-Madison and
 CRIEPI) et al. as part of a buffer-layer study for YBa2Cu3O7-d (YBCO)
 coated conductors. The authors found that varying the Y2O3 thickness
 (300 or 600 nm) and deposition-chamber pressure (10^[-4] or 10^[-5]
 torr) did not affect the development of a {100} texture. However,
 annealing the Ni at 800^oC rather than 600^oC produced a tendency for
 {111} rather than {100} growth near grain-boundary grooves. This local
 imperfection in the texture could lead to significant barriers to
 supercurrent flow in the YBCO overlayer.
<p>
 The growth of thin films of Bi2(Sr,Ca)2CuOx (Bi-2201) on MgO has been
 studied by T. Endo (Mie) et al. Film growth was carried out by ion-beam
 sputtering at substrate temperatures T_s = 400-700^oC with a supply of
 either oxygen molecules or plasma at around 1 mtorr. Conditions for
 high-quality film growth are: (a) moderate thermal energy, (b) ultralow
 growth rate, (c) collision-induced moderate energy of the sputtered
 particles, (d) suitably excited oxygen, (e) plasma-induced multiple
 nucleation, and (f) ordering of Sr and Ca and reduction of the surface
 energy of the growing film by the plasma.
<p>
<p>
 Applications
<p>
 As emphasized in a preprint by P. Kummeth (Siemens-Erlangen) et al., the
 main advantages of high-temperature-superconducting (HTS) transformers
 are reduced size and weight and better efficiency in comparison with
 conventional transformers. These advantages are due to the high
 critical current densities and low ac losses of HTS tape conductors.
 Moreover, nonflammable liquid nitrogen can be used as a coolant in HTS
 transformers, thereby dramatically reducing the potential fire and
 environmental hazards that are present in conventional transformers.
 The authors have designed, manufactured, and tested a 100 kVA HTS power
 transformer as a functional model operated at 77 K. The iron core and
 HTS windings were mounted inside a glass-fiber-reinforced-plastic
 cryostat and cooled by liquid nitrogen. The nominal primary current of
 the transformer was 18 A (5.6 kV), and the secondary nominal current was
 92 A (1.1 kV). Untwisted silver-sheathed (Bi,Pb)-2223 tapes with 55
 filaments were used. While the high-voltage primary winding was made of
 a stack of 30 pancake coils connected in series, the two low-voltage
 secondary windings were solenoid coils with five tape conductors wound
 in parallel and transposed in-situ. The primary and secondary windings
 were arranged concentrically, and the secondary windings were connected
 in series. The authors performed no-load tests, short-circuit tests,
 and load tests, which proved the rated capacity of the transformer. The
 loss measurements yielded HTS winding losses of 20.6 W and iron losses
 of 403 W.
<p>
 The effects of the surface resistance R_s and surface reactance X_s on
 superconducting microstrip antenna properties have been investigated by
 M. I. Ali et al. (Yamagata). The antennas were fabricated from YBCO
 thin films on a (100) MgO single-crystal substrate at 11.7 GHz.
 Experiments revealed that the X_s of the superconducting thin film
 mainly influences the antenna resonant frequency and has a small
 influence on the antenna input impedance, while R_s mainly affects the
 input impedance of the antenna.
<p>
 Bolometric effects of a simple, large-area, unpatterned YBCO thin film
 on a 1 micrometer thick Pt membrane are reported by J. Yoon et al.
 (KAIST). The YBCO film was found to be composed of c-axis-normal and a-
 axis-normal textures. Measurements of bolometric effects at the
 resistive transition edge indicated a responsivity similar to the
 theoretically predicted value.
<p>
 A new, simple, low-cost experimental technique designed for
 investigating the electrical properties of disk-shaped superconducting
 samples is described in a preprint by Ph. Vanderbemden (Liege) et al.
 In response to two neighboring, 90 degrees out-of-phase ac magnetic
 fields applied perpendicular to the disk, the material experiences an
 electromagnetic torque, which depends on its electrical properties.
<p>
<p>
 Theory
<p>
 As noted in a preprint by M. B. Walker and M. F. Smith (Toronto), the
 quasiparticle lifetime and the related relaxation times are the
 fundamental quantities that must be known in order to obtain a
 description of the transport properties of the high-Tc superconductors.
 Studies of these quantities have been undertaken previously for d-wave
 high-Tc superconductors for the case of temperature-independent elastic
 impurity scattering. However, much less is known about temperature-
 dependent inelastic scattering. The preprint gives a detailed
 description of the characteristics of temperature-dependent
 quasiparticle-quasiparticle scattering in d-wave superconductors. The
 authors find that this process gives a natural explanation of the rapid
 variation with temperature of the electrical transport relaxation rate.
<p>
 As noted in a preprint by T. Dahm (Dresden) and D. J. Scalapino (UC-
 Santa Barbara), despite several efforts, the nonlinear Meissner effect
 in d-wave superconductors, discussed by Yip and Sauls in 1992, has not
 yet been verified experimentally in high-Tc superconductors. In this
 preprint, the authors reinvestigate the nonlinear response expected in a
 d-wave superconductor, taking into account the influence of nonmagnetic
 impurity scattering. They find that while the linear |H| field
 dependence of the penetration depth predicted by Yip and Sauls is
 restricted by the lower critical field and can be masked by nonlocal
 effects, the upturn of the nonlinear coefficient of the quadratic field
 dependence is more stable and remains observable over a broader range of
 parameters. The authors suggest that this coefficient can be measured
 by harmonic generation and intermodulation.
<p>
 The physical properties of low-energy superconducting quasiparticles in
 high-Tc superconductors have been examined by T. Xiang (Beijing) and C.
 Panagopoulos (IRC-Cambridge) using experimental magnetic penetration
 depth and specific-heat data. The authors find that the low-energy
 density of states of quasiparticles in La2-xSrxCuO4 scales with (x -
 x_c)/Tc to leading order, where x_c is the critical doping concentration
 below which Tc = 0.
<p>
 A preprint by T. Okabe (Gunma) reports an evaluation of vertex
 corrections to Tc in the context of the antiferromagnetic spin-
 fluctuation model of high-Tc superconductivity. The author finds that
 the corrections are attractive in the d_[x^2-y^2] channel and that they
 become appreciable upon passing through an intermediate-coupling regime
 of Tc ~~ 100 K, the maximum Tc attainable in the one-loop Eliashberg
 calculation.
<p>
 Progress in understanding the fermionic Ising spin glass with arbitrary
 filling is discussed in a preprint by R. Oppermann and H. Feldmann
 (Wuerzburg). Using an extended model, the authors discuss the
 competition between local pairing superconductivity and spin-glass
 order.
<p>
 In a preprint by M. P. Das (Australian National University), the author
 suggests that it should be possible to describe a possibly
 superconducting or superfluid ground state using density-functional
 theory. A correct understanding of the ground state, however, would
 require a good knowledge of the energy functional, which is currently
 lacking.
<p>
<p>
 Other Activities
<p>
 Through neutron and x-ray diffraction and resistivity measurements on
 crystals of the superconducting material La1.6-xNd0.4SrxCuO4, N.
 Ichikawa (Tokyo) et al. present evidence that charge stripes that order
 at low temperatures are intrinsically metallic. Despite a slight
 difference in the charge-ordering temperatures determined by diffraction
 and recent nuclear quadrupole resonance (NQR) studies, the latter
 results are found to correlate with a specific signature in the
 resistivity. The authors conclude that the smooth evolution of the
 resistivity with temperature indicates that charge ordering involves a
 gradual pinning of preformed stripes.
<p>
 Measurements bearing on the question of whether stripes in cuprates and
 nickelates are insulating or metallic have been carried out by Yu. G.
 Pashkevich (Donetsk) et al. The authors carried out Raman light-
 scattering and optical conductivity measurements on a single crystal of
 La1.775Sr0.225NiO4, which exhibits incommensurate charge-stripe order.
 The extra phonon peaks induced by stripe order can be understood in
 terms of the energies of phonons that occur at the charge-order wave
 vector Q_c. A strong Fano antiresonance for a Ni-O bond-stretching mode
 provides clear evidence for finite dynamical conductivity within the
 charge stripe.
<p>
 The 23 K superconducting phase in the Y-Pd-B-C system has been
 identified by L. M. Dezaneti et al. (TCSUH) using a microanalysis
 technique on micrograin samples. Through physical and structural
 characterization of such micrograins, the authors found that the
 tetragonal YPd2B2Cx phase with space group I4/mmm and lattice parameters
 a = 0.371 nm and c = 1.08 nm is responsible for the 23 K superconducting
 transition in this system.
<p>
<p>
 Overviews
<p>
 A review by M. Karppinen (Tokyo Tech and Helsinki University of
 Technology) and H. Yamauchi (Tokyo Tech) stresses that in the known
 multilayered superconductive copper-oxide structures, the charge
 distribution is inhomogeneous over several different length scales in
 the crystal. The authors discuss: (a) general crystallographic
 categorization and naming scheme of multilayered copper oxides based on
 the concept of homologous series, (b) crystallographic and chemical
 factors to control the oxygen nonstoichiometry and charge distribution,
 (c) techniques for probing the charge and charge-carrier distributions
 in the layered copper-oxide crystal, and (d) empirical relationships
 between the carrier distribution and superconducting properties
 including the superconducting transition temperature Tc, the magnetic
 irreversibility field H_[irr], and the peak-effect (fishtail) phenomenon
 (221 refs.).
<p>
 As noted in a brief review by S. Sachdev and M. Vojta (Yale), it was
 argued many years ago that translational symmetry breaking due to the
 appearance of spin-Peierls ordering (or bond-charge stripe order) is a
 fundamental property of the quantum paramagnetic states of a large class
 of two-dimensional square-lattice antiferromagnets. Recently, such
 states were shown to be a convenient point of departure for studying
 translational symmetry breaking in doped antiferromagnets. The authors
 briefly review these results with an emphasis on experimental
 implications (29 refs.).
<p>
<p>
 Contributed by John R. Clem
<p>
 <hr>
<p>
 Contents: Technology News is on page 6; Preprints begin on page 6;
 Coming Events begin on page 12; and Resources are on page 13.
<p>
 High-Tc Update is available without charge to interested persons.
 Recipients are expected to participate in this information exchange by
 sending us preprints, reprints, meeting news, research news, etc.
 Contributions to defray the cost of newsletter printing and mailing are
 welcome.
<p>
 <hr>
<p>
 TECHNOLOGY NEWS
 (Also see Applications section of Nota Bene.)
<p>
 This section describes progress in manufacturing, product development,
 and technology transfer in the high-Tc superconductivity field. Please
 send your contributions (product development information, news regarding
 technology transfer efforts, or any information you would like to share
 about your corporation or laboratory) to the editor.
<p>
 In a recent notification, Intermagnetics General Corporation (IGC)
 announced that it is centralizing its High-Temperature Superconductors
 (HTS) Development and Manufacturing Unit in a newly renovated facility
 near its corporate headquarters. HTS technology is viewed as being
 especially valuable to the deregulating electric utility industry.
 Officials stated that the success to date of projects the company is
 currently undertaking with industry partners, aimed at the
 commercialization of products such as transformers, fault-current
 controllers, and transmission cables, convinces them that the technology
 is capable of being competitive on a global scale. Intermagnetics is
 working with partners such as General Atomics, Waukesha Electric
 Systems, Southwire Company, several DOE National Laboratories,
 Rensselaer Polytechnic Institute, and the University of Albany, to
 commercialize the technology beyond existing sales of materials and
 prototype devices. Intermagnetics' Advanced Devices & Systems
 Department, responsible for commercializing high-temperature
 superconductivity technology, is expected to complete its move by the
 end of November 1999. Centralizing all operations will increase the
 efficiency and economy of operations, enabling manufacturing of HTS
 materials and devices to ramp up to commercially viable levels, and the
 new facility will enable the expansion of next generation HTS wire
 manufacturing utilizing high-technology manufacturing techniques similar
 to those employed by the semiconductor industry. The new techniques are
 expected to reduce materials costs to levels necessary for broad
 commercial applications of HTS technology over the next three to five
 years. For further information, contact Intermagnetics General
 Corporation, 450 Old Niskayuna Road, P.O. Box 461, Latham, NY 12110-
 0461; telephone (518) 782-1122.
<p>
<p>
 Contributed by Sreeparna Mitra
<p>
 <hr>
<p>
 PREPRINTS
 To obtain a particular preprint, contact the first author at the address
 given at the end of the citation. Help us expand this list by sending
 us your complete preprint. Please specify where and when your paper was
 submitted. An * next to an entry indicates it is a correction or
 revision of a previous entry. PACS codes and/or key words are given at
 the end of the citation.
<p>
 Ajay, R. Lal, and S. K. Joshi, "Study of Doping-Dependent Shift in the
 Chemical Potential of High Tc Cuprates by t-t'-J Model." To be
 published in Physica C (in press). Department of Physics, G. B. Pant
 University of Agriculture and Technology, Pantnagar 263145, INDIA;
 telephone +91 5944 33077; telefax +91 5944 33473; e-mail
 <a href="mailto:cbsh@gbpuat.ernet.in">cbsh@gbpuat.ernet.in.</a> Key words: high-Tc cuprates, spectral
 properties, doping density. 71.20.Ad; 74.25.Jb; 74.72.-h.
<p>
 T. Akao, S. R. Lee, H. Suematsu, K. Kurashima, Y. Bando, and H.
 Yamauchi, "Peak Effect Caused by Compositional Modulation in
 Superconducting (Hg,Pb)(Ba,Sr)-1223 Single Crystal." To be published in
 J. Low Temp. Phys. Contact H. Yamauchi, Materials & Structures
 Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
 Yokohama 227, JAPAN; telephone +81 45 924-5315; telefax +81 45 924-5365
 or -5360; e-mail <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 J. A. Alarco, J. D. Riches, and J. C. Barry, "Comments on the Phase
 Diagrams and Crystallization Paths of Y-Ba-Cu-O Materials." To be
 published in Physica C (in press). Advanced Ceramics Development,
 UniQuest, University of Queensland, Queensland 4072, AUSTRALIA;
 telephone +61 7 3365 4045; telefax +61 7 3365 7093; e-mail
 <a href="mailto:j.alarco@mailbox.uq.edu.au">j.alarco@mailbox.uq.edu.au.</a> Key words: Y-Ba-Cu-O, phase diagram,
 solidification, melt processing. 74.72.Bk; 81.30.-t; 81.10.-h.
<p>
 M. I. Ali, K. Ehata, M. Kusunoki, and S. Ohshima, "Effect of Surface
 Impedance on the Antenna Properties in Superconducting Microstrip
 Antenna." To be published in Physica C (in press). Faculty of
 Engineering, Yamagata University, Jonan 4-3-16, Yonezawa 992-8510,
 JAPAN. Key words: surface impedance, superconducting antenna, resonant
 frequency, gain. 85.25.Na.
<p>
 A. Amici, P. Thalmeier and P. Fulde, "Theoretical Model for the
 Superconducting and Magnetically Ordered Borocarbides." E-mail
 <a href="mailto:amici@mpipks-dresden.mpg.de">amici@mpipks-dresden.mpg.de,</a> preprint available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910229">http://xxx.lanl.gov/abs/cond-mat/9910229.</a>
<p>
 F. M. Araujo-Moreira, C. Navau, and A. Sanchez, "Meissner State in
 Finite Superconducting Cylinders with Uniform Applied Magnetic Field."
 To be published in Phys. Rev. B. Grupo de Supercondutividade e
 Magnetismo, Departamento de Fisica, Universidade Federal de Sao Carlos,
 Caixa Postal 676, 13565-905 Sao Carlos-SP, BRAZIL; telephone +55 16 260
 8228; telefax +55 16 261 4835; e-mail <a href="mailto:faraujo@power.ufscar.br">faraujo@power.ufscar.br;</a> preprint
 also available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910065">http://xxx.lanl.gov/abs/cond-mat/9910065.</a>
<p>
 T. Aytug, Y. Yu, S. L. Yan, Y. Y. Xie, and J. Z. Wu, "Response of
 Superconducting Characteristics of Hg-Based High-Tc Thin Films to
 Photolithographic Processes." To be published in Physica C (in press).
 Building 3115, MS-6061, Oak Ridge National Laboratory, Bethel Valley
 Road, P.O. Box 2008, Oak Ridge, TN 37831-6061; e-mail
 <a href="mailto:aytug@solid.ssd.ornl.gov">aytug@solid.ssd.ornl.gov.</a> Key words: high-temperature
 superconductivity, Hg-1212, stability, photolithography. 74.72.Gr;
 74.76.Bz.
<p>
 J. Azoulay, "YBCO Thin Film Evaporation on As-Deposited Silver Film on
 MgO." To be published in Physica C (in press). Center for
 Technological Education Holon, Holon Institute of Technology Arts and
 Sciences, Tel-Aviv University, P.O. Box 305, Holon 58102, ISRAEL;
 telephone +972 3 502 6608; telefax +972 3 502 6750. Key words: YBCO,
 as-deposited silver film, MgO.
<p>
 C. T. Bird, J. L. Calvin, M. H. Davies, B. M. Fetrow, S. M. Herman, R.
 J. Hill, K. W. Holman, J. J. LaBelle, C. L. Smiley, J. M. Wegner, E.
 Dedrick, and S. M. Durbin, "Miscibility of Au and Cu in Superconducting
 YBa2(Cu1-xAux)3O7-d for 0 < x < 0.15." To be published in Physica C (in
 press). Contact S. M. Durbin, Department of Physics, Purdue University,
 West Lafayette, IN 47907-1396; telephone (765) 494-6426; telefax (765)
 494-0706; e-mail <a href="mailto:durbin@physics.purdue.edu">durbin@physics.purdue.edu.</a> Key words: miscibility,
 Au, Cu.
<p>
 N. Chandrasekhar, "Onset of Superconductivity in 2D Granular Films
 Composed of Bi Clusters." To be published in Physica B: Proc. of the
 22nd Int. Conf. on Low Temp. Phys. (LT22), Helsinki, Finland, Aug. 5-11,
 1999. Department of Physics, Indian Institute of Science, Bangalore 560
 012, INDIA; e-mail <a href="mailto:chandra@physics.iisc.ernet.in">chandra@physics.iisc.ernet.in;</a> preprint also
 available at <a href="http://xxx.lanl.gov/abs/cond-mat/9909370">http://xxx.lanl.gov/abs/cond-mat/9909370.</a> Key words:
 disordered systems, superconductivity, thin films.
<p>
 W. P. Chen, H. Maeda, K. Watanabe, M. Motokawa, H. Kitaguchi, and H.
 Kumakura, "Microstructures and Properties of Bi2212/Ag Tapes Grown in
 High Magnetic Fields." To be published in Physica C (in press).
 Institute for Materials Research, Tohoku University, Sendai 980-8577,
 JAPAN; telefax +81 22 215 2149; e-mail <a href="mailto:chenwp@imr.tohoku.ac.jp">chenwp@imr.tohoku.ac.jp.</a> Key
 words: Bi2212, texture, magnetic field, critical current density.
 74.72.Hs; 74.62.Bf; 81.40.Rs.
<p>
 C. W. Chu, Y. Y. Xue, R. L. Meng, J. Cmaidalka, L. M. Dezaneti, Y. S.
 Wang, B. Lorenz, and A. K. Heilman, "Absence of a Bulk Meissner State in
 RuSr2GdCu2O8." Preprint #99:077; submitted to Phys. Rev. Lett. Texas
 Center for Superconductivity, University of Houston, Houston, TX 77204-
 5932; telephone (713) 743-8200; telefax (713) 743-8201; e-mail
 <a href="mailto:preprints@www.tcs.uh.edu">preprints@www.tcs.uh.edu;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910056">http://xxx.lanl.gov/abs/cond-mat/9910056.</a> 74.25.Ha; 74.72.Jt; 74.25.-q.
<p>
 Aashish A. Clerk and Vinay Ambegaokar, "Loss of pi-Junction Behavior in
 an Interacting Impurity Josephson Junction." E-mail
 <a href="mailto:aashish@tristan.tn.cornell.edu">aashish@tristan.tn.cornell.edu,</a> preprint available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910201">http://xxx.lanl.gov/abs/cond-mat/9910201.</a>
<p>
 J. Corson, J. Orenstein, J. N. Eckstein, and I. Bozovic, "Low
 Temperature ac Conductivity of Bi2Sr2CaCu2O8+d." Preprint #LBNL-44185;
 submitted to Physica B: Proc. of the 22nd Int. Conf. on Low Temp. Phys.
 (LT22), Helsinki, Finland, Aug. 5-11, 1999. Lawrence Berkeley National
 Laboratory, Mail Stop 2-300, 1 Cyclotron Road, Berkeley, CA 94720;
 telephone (510) 486-5879; telefax (510) 486-5996; e-mail
 <a href="mailto:corson@socrates.berkeley.edu">corson@socrates.berkeley.edu;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9908368">http://xxx.lanl.gov/abs/cond-mat/9908368.</a> Key words: high-Tc
 superconductivity, quasiparticle conductivity, Bi2Sr2CaCu2O8+d, THz
 spectroscopy.
<p>
 T. Dahm and D. J. Scalapino, "Nonlinear Current Response of a d-Wave
 Superfluid." To be published in Phys. Rev. B. Institut fuer
 Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-
 72076 Tuebingen, GERMANY; telefax +49 7071 29 5604; e-mail
 <a href="mailto:thomas.dahm@uni-tuebingen.de">thomas.dahm@uni-tuebingen.de;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9908332">http://xxx.lanl.gov/abs/cond-mat/9908332.</a> 74.25.Nf; 74.20.Fg; 74.72.-h.
<p>
 M. P. Das, "Density Functional Theory of Super-Phenomena." To be
 published in Condensed Matter Theories, Vol. 14 (Nova Sci.). Department
 of Theoretical Physics, Institute of Advanced Studies, Australian
 National University, Canberra ACT 0200, AUSTRALIA; e-mail
 <a href="mailto:mukunda.das@anu.edu.au">mukunda.das@anu.edu.au.</a>
<p>
 L. M. Dezaneti, Y. Y. Xue, Y. Y. Sun, D. K. Ross, and C. W. Chu,
 "Direct Identification of the 23 K Superconducting Phase in the Y-Pd-B-C
 System." Preprint #99:078; submitted to Physica C. Texas Center for
 Superconductivity, University of Houston, Houston, TX 77204-5932;
 telephone (713) 743-8200; telefax (713) 743-8201; e-mail
 <a href="mailto:preprints@www.tcs.uh.edu">preprints@www.tcs.uh.edu.</a> Key words: magnetization. 61.10.My.
<p>
 P. Diko and K. C. Goretta, "Macrocracking in Melt-Grown 123 Bulk
 Superconductors." Presented at the Fourth European Conf. on Appl.
 Supercond. (EUCAS'99), Barcelona, Spain, Sept. 14-17, 1999; to be
 published in the Inst. of Physics Conf. Series. Institute of
 Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04353
 Kosice, SLOVAKIA; telephone +421 95 633 6320; telefax +421 95 633 6292;
 e-mail <a href="mailto:dikos@saske.sk">dikos@saske.sk.</a>
<p>
 Hyeonjin Doh, Manfred Sigrist, B.K. Cho, and Sung-Ik Lee,
 "Phenomenological Theory of Superconductivity and Magnetism in Ho1-
 xDyxNi2B2C." Submitted to Phys. Rev. Lett. E-mail <a href="mailto:doh@postech.ac.kr">doh@postech.ac.kr,</a>
 preprint available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910214">http://xxx.lanl.gov/abs/cond-mat/9910214.</a>
<p>
 Tamio Endo, Satoshi Yamada, Naoki Hirate, Munehiro Horie, Katsutoshi
 Itoh, Masaki Tada, Ken-ichi Itoh, and Yasuo Tsutsumi, "Low Temperature
 Growth of Bi2(Sr,Ca)2CuOx Thin Films by Ion Beam Sputtering and Effects
 of Oxygen Plasma." To be published in Physica C (in press). Faculty of
 Engineering, Mie University, Kamihama, Tsu, Mie 514-8507, JAPAN;
 telephone +81 59 231 9400; telefax +81 59 231 9471; e-mail
 <a href="mailto:endo@cm.elec.mie-u.ac.jp">endo@cm.elec.mie-u.ac.jp.</a> Key words: ion-beam sputtering, oxygen
 plasma, temperature.
<p>
 L. Fabrega, A. Sin, S. Pinol, J. Fontcuberta, D. Eyidi, and J. Rabier,
 "Flux Pinning Enhancement by Room Temperature Plastic Deformation on Hg-
 Based Ceramic Superconductors." To be published in Physica C (in
 press). Institut de Ciencia de Materials de Barcelona, C.S.I.C., Campus
 de la Universitat Autonoma de Barcelona, E-08193 Bellaterra, SPAIN;
 telephone +34 93 580 1853; telefax +34 93 580 5729; e-mail
 <a href="mailto:lourdes@icmab.es">lourdes@icmab.es.</a> Key words: Hg-based superconductors, flux pinning,
 plastic deformation. 74.72.Gr; 74.25.Ha; 74.60.Ge.
<p>
 H. Feldmann and R. Oppermann, "Self-Organized Three-Band Structure of
 the Doped Fermionic Ising Spin Glass." Institut fuer Theoretische
 Physik, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, GERMANY;
 telephone +49 931 888 5892; e-mail <a href="mailto:feldmann@physik.uni-wuerzburg.de">feldmann@physik.uni-wuerzburg.de;</a>
 preprint also available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910119">http://xxx.lanl.gov/abs/cond-mat/9910119.</a>
 71.23.-k; 71.23.An; 75.10.Nr.
<p>
 A. Yu. Galkin, B. A. Ivanov, and V. Kambersky, "On the Critical State in
 a Non-Uniform Type II Superconductor." To be published in Physica C (in
 press). Institute of Metal Physics, National Academy of Sciences of
 Ukraine, Yaroslavskaya 29, Apt. 16, 254071 Kiev, UKRAINE; telephone +380
 44 416 0932; telefax +380 44 444 1031; e-mail <a href="mailto:galkin@imp.kiev.ua">galkin@imp.kiev.ua.</a> Key
 words: critical-state model, inter- and intragranular currents.
 74.60.Ge.
<p>
 J.-Y. Genoud, H. J. Trodahl, and A. E. Pantoja, "The Superconducting and
 Normal State Gaps in YBa2Cu4O8: An Electronic Raman Scattering Study."
 To be published in Solid State Commun. Institute of Physics,
 Departement de Physique de la Matiere Condensee (DPMC), CH-1211 Geneve
 4, SWITZERLAND; e-mail <a href="mailto:jean-yves.genoud@physics.unige.ch">jean-yves.genoud@physics.unige.ch.</a> Key words:
 high-Tc superconductors, inelastic light scattering.
<p>
 Gregory M. Harry, Insik Jin, Ho Jung Paik, Thomas R. Stevenson, and
 Frederick C. Wellstood, "Two Stage Superconducting Quantum Interference
 Device Amplifier in a High-Q Gravitational Wave Transducer." Submitted
 to Appl. Phys. Lett. E-mail <a href="mailto:gharry@suhep.phy.syr.edu">gharry@suhep.phy.syr.edu,</a> preprint
 available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910337">http://xxx.lanl.gov/abs/cond-mat/9910337.</a>
<p>
 C. Huscroft, M. Jarrell, Th. Maier, S. Moukouri, and A. N.
 Tahvildarzadeh, "Pseudogaps in the 2D Half-Filled Hubbard Model." E-
 mail <a href="mailto:carey@physics.uc.edu">carey@physics.uc.edu,</a> preprint available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910226">http://xxx.lanl.gov/abs/cond-mat/9910226.</a>
<p>
 N. Ichikawa, S. Uchida, J. M. Tranquada, T. Niemoeller, P. M. Gehring,
 S.-H. Lee, and J. R. Schneider, "Metallic Stripes and Charge Order in
 Cuprate Superconductors." Institute for Chemical Research, Kyoto
 University, Uji 611-0011, JAPAN; J. M. Tranquada's e-mail <a href="mailto:jtran@bnl.gov">jtran@bnl.gov;</a>
 preprint also available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910037">http://xxx.lanl.gov/abs/cond-mat/9910037.</a>
<p>
 Ataru Ichinose, Chau-Yun Yang, David C. Larbalestier, S. E. Babcock,
 Akihiro Kikuchi, Kyoji Tachikawa, and Shirabe Akita, "Growth Conditions
 and Microstructure of Y2O3 Buffer Layers on Cube-Textured Ni." To be
 published in Physica C (in press). Central Research Institute of
 Electric Power Industry, Komae Research Laboratory, 2-11-1 Iwato-Kita,
 Komae, Tokyo 201-8511, JAPAN; telephone +81 3 3480 2111; telefax +81 3
 3480 3401; e-mail <a href="mailto:ai@criepi.denken.or.jp">ai@criepi.denken.or.jp.</a> Key words: coated conductor,
 biaxial texture, buffer layers, Y2O3, e-beam evaporation.
<p>
 L. Jansen and R. Block, "Effect of Iodine Intercalation on
 Superconductivity in the High-Tc Series Bi2Sr2CaN-1CuNO2N+4+d, N = 1, 2
 and 3, and in the Yttrium Doped N = 2 Compound: A Quantitative Analysis
 on the Basis of Indirect Exchange Pairing." To be published in Physica
 A. Institut fuer Theoretische Physik, ETH-Hoenggerberg, CH-8093 Zurich,
 SWITZERLAND; telefax +41 1 633 1115; e-mail <a href="mailto:jansen@itp.phys.ethz.ch">jansen@itp.phys.ethz.ch.</a>
<p>
 Maarit Karppinen and Hisao Yamauchi, "Control of the Charge
 Inhomogeneity and High-Tc Superconducting Properties in Homologous
 Series of Multi-Layered Copper Oxides." To be published in Mater. Sci.
 Eng. Reports. Contact H. Yamauchi, Materials & Structures Laboratory,
 Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227,
 JAPAN; telephone +81 45 924-5315; telefax +81 45 924-5365 or -5360; e-
 mail <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 M. Karppinen, H. Yamauchi, T. Hosomi, H. Suematsu, and H. Fjellvag,
 "Superconducting Cuprates with Charge Reservoir Consisting of Either
 Peroxide-Type Oxygen or H2O." To be published in J. Low Temp. Phys.
 Contact H. Yamauchi, Materials & Structures Laboratory, Tokyo Institute
 of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227, JAPAN; telephone
 +81 45 924-5315; telefax +81 45 924-5365 or -5360; e-mail
 <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 Iwao Kawayama, Masaki Kanai, Tomoji Kawai, Michitaka Maruyama, Akira
 Fujimaki, and Hisao Hayakawa, "Properties of c-Axis Josephson Tunneling
 Between Bi2Sr2CaCu2O8 and Nb." To be published in Physica C (in press).
 Kawai Laboratory, Institute of Scientific and Industrial Research, Osaka
 University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, JAPAN; telephone +81
 6879 8447; telefax +81 6875 2440; e-mail <a href="mailto:kawaya32@sanken.osaka-u.ac.jp">kawaya32@sanken.osaka-u.ac.jp.</a>
 Key words: Bi2Sr2CaCu2Od, Josephson tunnel junction, pair symmetry.
 74.50.+r; 74.72.Hs.
<p>
 Beom Jun Kim and Petter Minnhagen, "Magnetic Field Dependence of
 Dynamical Vortex Response in Two-Dimensional Josephson Junction Arrays
 and Superconducting Films." To be published in Phys. Rev. B.
 Department of Theoretical Physics, Umea University, 901 87 Umea, SWEDEN;
 e-mail <a href="mailto:kim@tp.umu.se">kim@tp.umu.se;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910300">http://xxx.lanl.gov/abs/cond-mat/9910300.</a> 74.40.+k; 75.40.Gb; 74.60.Ge;
 74.76.-w.
<p>
 K. Kotiranta, T. Nakane, M. Karppinen, H. Yamauchi, and L. Niinistoe,
 "Control of Hole Distribution and Superconducting Properties in
 Bi2Sr2(Ca1-xYx)Cu2O8+d." To be published in J. Low Temp. Phys. Contact
 H. Yamauchi, Materials & Structures Laboratory, Tokyo Institute of
 Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227, JAPAN; telephone
 +81 45 924-5315; telefax +81 45 924-5365 or -5360; e-mail
 <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 H. Kumakura, H. Kitaguchi, T. Mochiku, K. Togano, and S. Okayasu,
 "Magnetically Investigated E-J Characteristics of Bi-2212/Ag Tape
 Conductors." To be published in Physica C (in press). National
 Research Institute for Metals, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047,
 JAPAN; telephone +81 298 59 2327; telefax +81 298 59 2301; e-mail
 <a href="mailto:kumakura@nrim.go.jp">kumakura@nrim.go.jp.</a> Key words: Bi2Sr2CaCu2Ox, tape, magnetization, E-
 J curve. 74.72.Hs; 74.60.Ge; 85.25.Kx.
<p>
 Peter Kummeth, Reinhard Schlosser, Cord Albrecht, and Heinz-Werner
 Neumueller, "Manufacturing and Test of a 100 kVA HTS Transformer."
 Presented at the Eur. Congress on Advanced Materials and Processes
 (EUROMAT'99), Munich, Germany, Sept. 27-30, 1999. Siemens AG, Dept. ZT
 EN 4, P.O. Box 3220, D-91050 Erlangen, GERMANY; telephone +49 9131 7
 34254; telefax +49 9131 7 33323; e-mail <a href="mailto:peter.kummeth@erls.siemens.de">peter.kummeth@erls.siemens.de.</a>
<p>
 A. N. Lavrov, Yoichi Ando, and Kouji Segawa, "Manifestations of the
 Charged Stripes in the Magnetoresistance of Heavily Underdoped
 YBa2Cu3O6+x." To be published in the Proc. of the 12th Int. Symp. on
 Superconductivity (ISS'99), Morioka, Japan, Oct. 17-19, 1999. E-mail
 <a href="mailto:lavrov@criepi.denken.or.jp">lavrov@criepi.denken.or.jp,</a> preprint available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910316">http://xxx.lanl.gov/abs/cond-mat/9910316.</a>
<p>
 Urs Ledermann and Karyn Le Hur, "Phases of the Two-Band Model of
 Spinless Fermions in One Dimension." E-mail <a href="mailto:lederman@itp.phys.ethz.ch">lederman@itp.phys.ethz.ch,</a>
 preprint available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910187">http://xxx.lanl.gov/abs/cond-mat/9910187.</a>
<p>
 J. Q. Li, C. C. Lam, J. S. Abell, G. B. Peacock, P. P. Edwards, and L.
 J. Shen, "Improvement of Critical Current Density in Sb-Doped
 HgBa2Ca2Cu3O8+d Superconductor Prepared by Hg Vapor Diffusion Process."
 To be published in Physica C (in press). Contact J. S. Abell, School of
 Metallurgy and Materials, University of Birmingham, Edgbaston,
 Birmingham B15 2TT, UNITED KINGDOM; telefax +44 121 414 5232; e-mail
 <a href="mailto:j.s.abell@bham.ac.uk">j.s.abell@bham.ac.uk.</a> Key words: critical current density, Sb-doped
 Hg-1223 superconductors, Hg vapor.
<p>
 Tulika Maitra and A. Taraphder, "Gap Anisotropy in the Angle-Resolved
 Photoemission Spectroscopy of Bi2Sr2CaCu2O8+d." To be published in
 Physica C (in press). Contact A. Taraphder, Centre for Theoretical
 Studies, Indian Institute of Technology, Kharagpur 721302, INDIA; e-mail
 <a href="mailto:arghya@phy.iitkgp.ernet.in">arghya@phy.iitkgp.ernet.in.</a> Key words: gap anisotropy, angle-resolved
 photoemission spectroscopy, Bi2Sr2CaCu2O8+d. 74.72.-h; 74.20.Fg.
<p>
 Gurgen Melkonyan, Helmut Kroeger, and Armen M. Gulian, "Nonequilibrium
 Superconductor-Normal Metal Tunnel Contact and the Phonon Deficit
 Effect." Departement de Physique, Universite Laval, Quebec, Quebec,
 CANADA G1K 7P4; e-mail <a href="mailto:gmelkony@phy.ulaval.ca">gmelkony@phy.ulaval.ca;</a> preprint also available
 at <a href="http://xxx.lanl.gov/abs/cond-mat/9909170">http://xxx.lanl.gov/abs/cond-mat/9909170.</a>
<p>
 Fumihiko Nakamura, Tatsuo Goko, Junya Hori, Yoshinori Uno, Naoki
 Kikugawa, and Toshizo Fujita, "Role of Two-Dimensional Electronic State
 in Superconductivity in La2-xSrxCuO4." To be published in Phys. Rev. B.
 Department of Quantum Matter, ADSM, Hiroshima University, Higashi-
 Hiroshima 739-8526, JAPAN; e-mail <a href="mailto:fn204@cam.ac.uk">fn204@cam.ac.uk;</a> preprint also
 available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910026">http://xxx.lanl.gov/abs/cond-mat/9910026.</a> 74.62.Fj;
 74.25.-q; 74.72.Dn; 74.62.-c.
<p>
 J. G. Noudem, M. Tarka, E. S. Reddy, and G. J. Schmitz, "Preparation and
 Characterization of Electrical Contacts to Bulk High-Temperature
 Superconductors." Presented at the Fourth European Conf. on Appl.
 Supercond. (EUCAS'99), Barcelona, Spain, Sept. 14-17, 1999. ACCESS e.V.
 Materials Sciences, Intzestrasse 5, D-52072 Aachen, GERMANY; telephone
 +49 241 8795 770; telefax +49 241 38 578; e-mail <a href="mailto:j.noudem@access.rwth-">j.noudem@access.rwth-</a>
 aachen.de.
<p>
 Takuya Okabe, "Vertex Corrections in the Spin-Fluctuation-Induced
 Superconductivity." Faculty of Engineering, Gunma University, Kiryu,
 Gunma 376-8515, JAPAN; e-mail <a href="mailto:okabe@phys.eg.gunma-u.ac.jp">okabe@phys.eg.gunma-u.ac.jp;</a> preprint also
 available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910154">http://xxx.lanl.gov/abs/cond-mat/9910154.</a> Key words:
 high-Tc superconductor, antiferromagnetic spin fluctuation, vertex
 correction.
<p>
 Reinhold Oppermann and Heiko Feldmann, "Pseudogaps and Charge Band in
 the Parisi Solution of Insulating and Superconducting Electronic Spin
 Glasses at Arbitrary Fillings." Institut fuer Theoretische Physik,
 Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, GERMANY; Heiko
 Feldmann's telephone +49 931 888 5892; e-mail <a href="mailto:feldmann@physik.uni-">feldmann@physik.uni-</a>
 wuerzburg.de; preprint also available at <a href="http://xxx.lanl.gov/abs/cond-">http://xxx.lanl.gov/abs/cond-</a>
 mat/9910059.
<p>
 S. J. Park, M. K. Hasan, and J. S. Kouvel, "Various Vortex Properties of
 YBCO and BSCCO Polycrystals and Their Departure from Critical-State
 Model Predictions." To be published in Physica C (in press). Contact
 J. S. Kouvel, Department of Physics (M/C273), University of Illinois at
 Chicago, Room 2236, 845 W. Taylor Street, Chicago, IL 60607-7059;
 telephone (312) 996-3400; telefax (312) 996-9016; e-mail <a href="mailto:kouvel@uic.edu">kouvel@uic.edu.</a>
 Key words: vortex properties, YBCO, BSCCO, critical state.
<p>
 Yu. G. Pashkevich, V. A. Blinkin, V. P. Gnezdilov, V. V. Tsapenko, V. V.
 Eremenko, P. Lemmens, M. Fischer, M. Grove, G. Guentherodt, L. Degiorgi,
 P. Wachter, J. M. Tranquada, and D. J. Buttrey, "Stripe Conductivity in
 La1.775Sr0.225NiO4." A. A. Galkin Donetsk Phystech, National Academy of
 Sciences of Ukraine, 340114 Donetsk, UKRAINE; J. M. Tranquada's e-mail
 at Brookhaven National Laboratory <a href="mailto:jtran@bnl.gov">jtran@bnl.gov;</a> preprint also available
 at <a href="http://xxx.lanl.gov/abs/cond-mat/9909270">http://xxx.lanl.gov/abs/cond-mat/9909270.</a> 71.45.Lr; 75.30.Fv;
 78.30.Hv; 63.20.Kr.
<p>
 W.A.C. Passos, F. M. Araujo-Moreira, and W. A. Ortiz, "Magnetic
 Remanence of Josephson Junction Arrays." Presented at the 44th Annual
 Conf. on Magnetism and Magnetic Materials, San Jose, Calif., Nov. 15-18,
 1999; to be published in J. Appl. Phys. Grupo de Supercondutividade e
 Magnetismo, Departamento de Fisica, Universidade Federal de Sao Carlos,
 Caixa Postal 676, 13565-905 Sao Carlos-SP, BRAZIL; e-mail
 <a href="mailto:pwac@iris.ufscar.br">pwac@iris.ufscar.br;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910118">http://xxx.lanl.gov/abs/cond-mat/9910118.</a> Key words: Josephson
 junction arrays, superconductivity, magnetism.
<p>
 K. Peitola, M. Kochi, M. Karppinen, H. Yamauchi, L. Niinistoe, and J.
 Linden, "Oxygen Stoichiometry in BaRE(Cu0.5Fe0.5)2O5+d Compounds with
 Perovskite or Double Perovskite Structure." To be published in J. Low
 Temp. Phys. Contact H. Yamauchi, Materials & Structures Laboratory,
 Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227,
 JAPAN; telephone +81 45 924-5315; telefax +81 45 924-5365 or -5360; e-
 mail <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 M. J. Qin and C. K. Ong, "Studies on ac Susceptibility of
 Superconductors with Finite Thickness." To be published in Physica C
 (in press). Department of Physics, National University of Singapore,
 Lower Kent Ridge Road, Singapore 119260, SINGAPORE; telephone +65 874
 2625; telefax +65 777 6126; e-mail <a href="mailto:phyqinmj@nus.edu.sg">phyqinmj@nus.edu.sg.</a> Key words: ac
 susceptibility, flux creep, superconductors with finite thickness.
 74.60.Ge; 74.60.Jg.
<p>
 A.I.M. Rae, "The Role of the Anisotropy of Lead in BSCCO-Pb Josephson
 Tunneling." School of Physics and Astronomy, University of Birmingham,
 Edgbaston, Birmingham B15 2TT, UNITED KINGDOM; e-mail
 <a href="mailto:a.i.m.rae@bham.ac.uk">a.i.m.rae@bham.ac.uk.</a>
<p>
 E. Sudhakar Reddy, J. G. Noudem, M. Tarka, and G. J. Schmitz, "Mono-
 Domain YBa2Cu3Oy Superconductor Fabrics Prepared by an Infiltration
 Process." Presented at the 2nd Int. Workshop on the Proc. and Appl. of
 Supercond. (RE)BCO Large Grain Materials (PASRE 2), Morioka, Japan, Oct.
 19-22, 1999. ACCESS e.V. Materials Sciences, Intzestrasse 5, D-52072
 Aachen, GERMANY; telefax +49 241 38 578; e-mail <a href="mailto:esreddy@access.rwth-">esreddy@access.rwth-</a>
 aachen.de. Key words: infiltration process, thick films,
 microstructure, seeded melt growth, fabrics.
<p>
 Subir Sachdev and Matthias Vojta, "Translational Symmetry Breaking in
 Two-Dimensional Antiferromagnets and Superconductors." Submitted to the
 Proc. of the Int. Workshop on Magnetic Excitations in Strongly
 Correlated Electrons, Hamamatsu, Japan, Aug. 19-22, 1999; to be
 published in J. Phys. Soc. Jpn. Department of Physics, Yale University,
 P.O. Box 208120, New Haven, CT 06520-8120; e-mail
 <a href="mailto:subir.sachdev@yale.edu">subir.sachdev@yale.edu;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910231">http://xxx.lanl.gov/abs/cond-mat/9910231.</a> Key words: spin-Peierls,
 bond-centered stripes, superconductivity.
<p>
 F. Schmidt, D. Boschetto, S. Linzen, J. Kraeusslich, A. Matthes, F.
 Schmidl, and P. Seidel, "Combined Sputter and Pulsed Laser Deposition
 for Preparation of Thin YBa2Cu3O7-d Films on Buffered Silicon
 Substrates." To be published in Physica C (in press). Institut fuer
 Festkoerperphysik, Friedrich-Schiller-Universitaet Jena, Helmholtzweg 5,
 D-07743 Jena, GERMANY. Key words: YBa2Cu3O7-d films, buffered silicon
 substrates, pulsed laser deposition. 74.76.Bz; 81.15.Cd; 74.80.Dm;
 68.55.-a.
<p>
 D. V. Shantsev, Y. M. Galperin, and T. H. Johansen, "Thin
 Superconducting Disk with Field-Dependent Critical Current:
 Magnetization and ac Susceptibilities." Department of Physics,
 University of Oslo, P.O. Box 1048, Blindern, N-0316 Oslo, NORWAY; e-mail
 <a href="mailto:daniel.shantsev@fys.uio.no">daniel.shantsev@fys.uio.no;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910146">http://xxx.lanl.gov/abs/cond-mat/9910146.</a>
<p>
 Seema Sharma, G. L. Bhalla, and G. C. Trigunayat, "Optimization of
 Stability of YBa2-xSrxCu3O7-d in Water." To be published in Physica C
 (in press). Contact G. L. Bhalla, Department of Physics and Astronomy,
 University of Delhi, Delhi 110 007, INDIA; telefax +91 11 725 7061. Key
 words: superconductivity, doping, stability, water treatment.
<p>
 Insang Song, ByongMan Kim, and Gwangseo Park, "Self-Radiation and
 Sensing of Microwave Using a Josephson Junction Coupled to a Frequency-
 Independent Antenna." To be published in Physica C (in press).
 Microsystems Laboratory, Samsung Advanced Institute of Technology, P.O.
 Box 111, Suwon 440-600, SOUTH KOREA; telephone +82 331 280 8082; telefax
 +82 331 280 6955; e-mail <a href="mailto:issong@family.sogang.ac.kr">issong@family.sogang.ac.kr.</a> Key words:
 Josephson junction, broadband antenna, self-radiation power. 85.25.Cp;
 85.25.Am; 85.25.Pb.
<p>
 H. Suematsu, H. Okamura, S. Nagaya, S. R. Lee, and H. Yamauchi,
 "Microstructural Cause of the Peak Effect in Superconducting Y-Ba-Cu-O
 Melt-Grown Bulks." To be published in J. Low Temp. Phys. Contact H.
 Yamauchi, Materials & Structures Laboratory, Tokyo Institute of
 Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227, JAPAN; telephone
 +81 45 924-5315; telefax +81 45 924-5365 or -5360; e-mail
 <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 X. F. Sun, X. Zhao, L. Wang, Q. F. Zhou, W. B. Wu, and X.-G. Li, "Growth
 of Superconducting Bi2Sr2Ca(Cu1-xMnx)2Oy Single Crystals." To be
 published in Physica C (in press). Department of Materials Science and
 Engineering, University of Science and Technology of China, Hefei
 230026, PEOPLE'S REPUBLIC OF CHINA; e-mail <a href="mailto:xfsun@ustc.edu.cn">xfsun@ustc.edu.cn.</a> Key
 words: Mn-doped, Bi2212, crystal growth.
<p>
 Lieven Trappeniers, Johan Vanacken, Patrick Wagner, Gerd Teniers,
 Severiano Curras, Joel Perret, Pierro Martinoli, Jean-Pierre Locquet,
 Victor V. Moshchalkov, and Yvan Bruynseraede, "Normal State Resistivity
 of Underdoped YBa2Cu3Ox Thin Films and La2-xSrxCuO4 Ultra-Thin Films
 Under Epitaxial Strain." To be published in J. Low Temp. Phys.: Proc.
 of the Int. Conf. on Phys. and Chem. of Molecular and Oxide Supercond.
 (MOS'99), Stockholm, Sweden, July 28-Aug. 2, 1999. Laboratorium voor
 Vaste-Stoffysica en Magnetisme, Katholieke Universiteit Leuven,
 Celestijnenlaan 200 D, B-3001 Leuven, BELGIUM; e-mail
 <a href="mailto:lieven.trappeniers@fys.kuleuven.ac.be">lieven.trappeniers@fys.kuleuven.ac.be;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910033">http://xxx.lanl.gov/abs/cond-mat/9910033.</a> 74.76.Bz; 74.25.Fy; 74.20.Mn.
<p>
 F. H. Uhlmann, St. Lange, M. Khabipov, and H.-G. Meyer, "Investigation
 of the Design of a Digital SQUID Sensor." To be published in Physica C
 (in press). Department of Fundamentals and Theory of Electrical
 Engineering, Technical University of Ilmenau, P.O. Box 100565, D-98684
 Ilmenau, GERMANY. Key words: SQUID sensors, superconducting A/D
 converter, digital SQUID.
<p>
 J. Vanacken, L. Trappeniers, K. Rosseel, I. N. Goncharov, V. V.
 Moshchalkov, and Y. Bruynseraede, "Flux Jumps Driven by a Pulsed
 Magnetic Field." Submitted to the Proc. of the First Euroconf. on
 Vortex Matter in Superconductors, Crete, Greece, Sept. 18-24, 1999; to
 be published in Physica C. Laboratorium voor Vaste-Stoffysica en
 Magnetisme, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-
 3001 Leuven, BELGIUM; telephone +32 16 32 7198; telefax +32 16 32 7983;
 e-mail <a href="mailto:johan.vanacken@fys.kuleuven.ac.be">johan.vanacken@fys.kuleuven.ac.be.</a>
<p>
 Johan Vanacken, Lieven Trappeniers, Gerd Teniers, Patrick Wagner, Kris
 Rosseel, Joel Perret, Jean-Pierre Locquet, Victor V. Moshchalkov, and
 Yvan Bruynseraede, "Comparison of the Transport Mechanism in Underdoped
 High Temperature Superconductors and in Spin Ladders." Presented at the
 Fifth IUMRS Int. Conf. on Adv. Mater. (IUMRS-ICAM'99), Beijing, China,
 June 13-18, 1999; submitted to Physica C. Laboratorium voor Vaste-
 Stoffysica en Magnetisme, Katholieke Universiteit Leuven,
 Celestijnenlaan 200 D, B-3001 Leuven, BELGIUM; telephone +32 16 32 7198;
 telefax +32 16 32 7983; e-mail <a href="mailto:johan.vanacken@fys.kuleuven.ac.be">johan.vanacken@fys.kuleuven.ac.be.</a> Key
 words: high-temperature superconductors, spin ladders, transport
 mechanism. 74.60.Ge; 74.62.Dh; 74.25.Ha; 74.60.Jg.
<p>
 Ph. Vanderbemden, Z. Aouina, R. Cloots, and M. Ausloos, "A New Fast and
 Non-Destructive Method for Evaluating the Superconducting Properties of
 Bulk Materials." Presented at the Fourth European Conf. on Appl.
 Supercond. (EUCAS'99), Barcelona, Spain, Sept. 14-17, 1999; to be
 published in the Inst. of Physics Conf. Series. Institut D'Electricite
 Montefiore, SUPRAS, Universite de Liege, Sart-Tilman B28, B-4000 Liege,
 BELGIUM; telephone +32 4366 2674; telefax +32 4366 2877; e-mail
 <a href="mailto:vanderbe@montefiore.ulg.ac.be">vanderbe@montefiore.ulg.ac.be.</a>
<p>
 I. Vekhter, L. N. Bulaevskii, A. E. Koshelev, and M. P. Maley,
 "Interlayer Quasiparticle Transport in the Vortex State of Josephson
 Coupled Superconductors." Submitted to Phys. Rev. Lett. Department of
 Physics, University of Guelph, Guelph, Ontario, CANADA N1G 2W1; e-mail
 <a href="mailto:vekhter@anik.physics.uoguelph.ca">vekhter@anik.physics.uoguelph.ca;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910341">http://xxx.lanl.gov/abs/cond-mat/9910341.</a>
<p>
 S. Wakimoto, S. Ueki, Y. Endoh, and K. Yamada, "Systematic Study of
 Short Range Antiferromagnetic Order and the Spin-Glass State in Lightly
 Doped La2-xSrxCuO4." E-mail <a href="mailto:waki@x-ray.mit.edu">waki@x-ray.mit.edu,</a> preprint available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910400">http://xxx.lanl.gov/abs/cond-mat/9910400.</a>
<p>
 M. B. Walker and M. F. Smith, "Quasiparticle-Quasiparticle Scattering in
 High Tc Superconductors." Department of Physics, University of Toronto,
 Toronto, Ontario, CANADA M5S 1A7; e-mail <a href="mailto:walker@physics.utoronto.ca">walker@physics.utoronto.ca;</a>
 preprint also available at <a href="http://xxx.lanl.gov/abs/cond-mat/9910171">http://xxx.lanl.gov/abs/cond-mat/9910171.</a>
 74.25.Fy.
<p>
 Frank K. Wilhelm, Gerd Schoen, and Gergely T. Zimanyi, "Superconducting
 Single-Charge Transistor in a Tunable Dissipative Environment." E-mail
 <a href="mailto:wilhelm@qt1.tn.tudelft.nl">wilhelm@qt1.tn.tudelft.nl,</a> preprint available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9910179">http://xxx.lanl.gov/abs/cond-mat/9910179.</a>
<p>
 Tao Xiang and Christos Panagopoulos, "Effects of Doping on Thermally
 Excited Quasiparticles in the High-Tc Superconducting State." Institute
 of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing 100080,
 PEOPLE'S REPUBLIC OF CHINA; e-mail <a href="mailto:txiang@itp.ac.cn">txiang@itp.ac.cn.</a>
<p>
 H. Yamauchi and M. Karppinen, "Control of the Carrier Distribution for
 Tailoring Superconducting Properties of Layered Cuprates." To be
 published in J. Low Temp. Phys. Materials & Structures Laboratory,
 Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227,
 JAPAN; telephone +81 45 924-5315; telefax +81 45 924-5365 or -5360; e-
 mail <a href="mailto:yamauchi@materia.titech.ac.jp">yamauchi@materia.titech.ac.jp.</a>
<p>
 Jaeryong Yoon, Keunho Ahn, and Dojun Youm, "Bolometric Effects of YBCO
 on a Pt Membrane." To be published in Physica C (in press). Contact
 Dojun Youm, Department of Physics, Korea Advanced Institute of Science
 and Technology, Kusong-Dong, Yusung-gu, Taejon 305-701, SOUTH KOREA;
 telephone +82 42 869 2570; telefax +82 42 869 2510; e-mail
 <a href="mailto:djyoum@sorak.kaist.ac.kr">djyoum@sorak.kaist.ac.kr.</a> Key words: bolometer, YBCO film, Pt
 membrane. 74.76.Bz.
<p>
 K. Yoshida, A. I. Rykov, S. Tajima, and I. Terasaki, "Pressure Effects
 on Anisotropic Resistivity in Detwinned YBa2Cu3O7-d: Unconventional
 Carrier Doping." To be published Phys. Rev. B. Superconductivity
 Research Laboratory, International Superconductivity Technology Center
 (ISTEC), 10-13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN; telephone
 +81 3 3536-5703 through -5705; telefax +81 3 3536-5714 or -5717.
 74.72.Bk; 74.25.Fy; 74.62.Fj.
<p>
 E. Zepezauer, A. Kalbeck, S. D. Ganichev, W. Korzenietz, and W. Prettl,
 "Near-Field Induced FIR Josephson Detection by c-Axis-Oriented
 YBa2Cu3O7-d Films." To be published in Int. J. of Infrared and
 Millimeter Waves. Institut fuer Experimentelle und Angewandte Physik,
 Universitaet Regensburg, D-93040 Regensburg, GERMANY; e-mail
 <a href="mailto:edmund.zepezauer@physik.uni-regensburg.de">edmund.zepezauer@physik.uni-regensburg.de;</a> preprint also available at
 <a href="http://xxx.lanl.gov/abs/cond-mat/9909151">http://xxx.lanl.gov/abs/cond-mat/9909151.</a> Key words: near field, far
 infrared, Josephson effect, YBa2Cu3O7-d.
 <hr>
<p>
 COMING EVENTS
 (An * indicates a previously listed event. Also see complete listing of
 upcoming conferences and workshops at our Web site
 <a href="http://www.iitap.iastate.edu/htcu/comevents.html.)">http://www.iitap.iastate.edu/htcu/comevents.html.)</a>
<p>
 Feb. 1 - 11, 2000: Magnetic Properties Of Condensed Matter Investigated
 by Neutron Scattering and Synchrotron Radiation Techniques, Miramare,
 Trieste, Italy. School organized jointly by INFM and the Abdus Salam
 ICTP. Purpose of the School is to increase the number of users of
 neutrons and photons at central facilities and to expose people already
 carrying out research in magnetism (or those acquiring an interest in
 magnetic materials) to the basic principles and usefulness of the two
 techniques for investigation of the magnetic properties of condensed
 matter. Leading authorities in magnetism/neutron/synchrotron radiation
 research will lecture at the School on basic principles and recent
 developments in both fields. The lectures are intended for young
 researchers and graduate students. An important aspect of the School
 will be the problem classes, where students will be tested on their
 knowledge of concepts introduced in the lectures. The School will
 ultimately give researchers who have not used the two techniques a
 motivation to use neutron and/or photon scattering in their relevant
 field of interest. Open to scientists and students from all countries
 that are members of the UN, UNESCO or IAEA. Activity to be conducted in
 English. Limited funds available for some scientists from developing
 countries. No registration fee. Deadline for requesting participation,
 November 15, 1999. For information, contact the Abdus Salam ICTP, SMR
 1216 (c/o Ms. D. M. Sauleek), Strada Costiera 11, I-34014 Trieste,
 Italy; telephone +39 040 2240111; telefax +39 040 2240585; e-mail
 <a href="mailto:smr1216@ictp.trieste.it">smr1216@ictp.trieste.it;</a> Web site <a href="http//www.ictp.trieste.it/">http//www.ictp.trieste.it/.</a>
<p>
 *Feb. 10 - 11, 2000: The 2000 Wire Development Workshop of the DOE
 Superconductivity Program, in St. Petersburg, Fla. Recent progress in
 first- and second-generation wire technology will be presented by
 national laboratories, wire manufacturers, and other program partners.
 Registration information will be available by the end of November. To
 be added to the program's mailing list, please contact Audrey Lamanna,
 Energetics, telephone (202) 479-2748, e-mail <a href="mailto:alamanna@energeticsinc.com">alamanna@energeticsinc.com.</a>
<p>
 *Feb. 13 - 18, 2000: Gordon Research Conference on Superconductivity --
 Harbortown Resort, Ventura, Calif. Session titles include new
 materials; pseudogap and normal-state properties; stripe phases; vortex
 physics; applications; novel heavy electron, organic, and magnetic
 superconductors; condensation energy; pairing symmetry, and mechanisms;
 theory; and c-axis transport. For further information, contact M. Brian
 Maple, Conference Chair, Department of Physics -- 0319, University of
 California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093; e-mail
 <a href="mailto:mbmaple@ucsd.edu">mbmaple@ucsd.edu.</a> Applications should be sent to Conference
 Application, Gordon Research Conferences, University of Rhode Island,
 P.O. Box 984, West Kingston, RI 02892-0984; e-mail
 <a href="mailto:app@grcmail.grc.uri.edu">app@grcmail.grc.uri.edu</a> (send/request e-mail application form from this
 address).
<p>
 *June 18 - 23, 2000: European Conference on Energy Dispersive X-Ray
 Spectrometry (EDXRS 2000), Krakow, Poland. Aim of the conference is to
 bring together scientists working either in basic research in x-ray
 spectrometry, detectors and sources, or involved in applications of x-
 ray spectrometry or some of the related experimental techniques. Main
 topics: interaction of photons and particles with matter and modeling;
 new developments in instrumentation (instruments utilizing polarized
 radiation, synchrotron radiation and other x-ray sources, grazing angle
 spectrometers, portable instruments); energy dispersive x-ray detectors
 (cryo-detectors, low-Z detectors, Peltier-cooled detectors, dedicated
 pulse processing); quantitation and data handling (sample preparation,
 quality control and quality assurance, simulation, modeling, software);
 x-ray optics (capillaries, mirrors, multilayers, TXRF, imaging);
 microanalysis and elemental mapping (micro-XRF, micro-PIXE, EPMA); and
 x-ray spectrometry applications in life and environmental sciences,
 earth sciences, art and cultural heritage, material sciences, and
 industry. Pre-registration deadline, November 15, 1999; abstract
 deadline, March 1, 2000. The official language of the Conference is
 English. For information, contact EDXRS-2000 Secretariat, Faculty of
 Physics and Nuclear Techniques, University of Mining and Metallurgy, Al.
 Mickiewicza 30, 30-059 Krakow, Poland; telefax +48 12 6340010; Web site
 <a href="http://www.ftj.agh.edu.pl/wfitj/conf/edxrs/">http://www.ftj.agh.edu.pl/wfitj/conf/edxrs/.</a>
<p>
 June 20 - 22, 2000: 11th International Cryocooler Conference (ICC11),
 Keystone Resort and Conference Center, Keystone, Colo. Technical
 program will consist of oral and poster sessions. Invited technical
 topics include Stirling and Pulse-Tube cryocoolers, J-T and G-M
 cryocoolers, new cryocooler concepts, cryocooler component developments,
 modeling and test techniques, performance and life test data,
 applications and integration issues, space flight cryocoolers, and low
 cost cryocoolers. Oral and poster sessions. For information, contact
 Rodney L. Oonk, ICC11, Ball Aerospace Systems Division, P.O. Box 1062,
 Boulder, CO 80306-1062; telephone (303) 939-4449; telefax (303) 939-
 6307; e-mail <a href="mailto:iccchair@cryocooler.org">iccchair@cryocooler.org.</a>
<p>
 Sept. 13 - 16, 2000: The Second International Conference on Inorganic
 Materials, University of California, Santa Barbara. Meeting will
 provide an opportunity to highlight recent developments and to identify
 emerging and future areas of growth in this field. Topics include
 electronic materials, structural materials and ceramics, biomaterials,
 intermetallics, catalytic and porous materials. Emphasis on oral
 presentations by invited speakers combined with extended poster
 sessions. Abstract deadline, February 25, 2000. Official language is
 English. A tabletop exhibition will run for the duration of the
 conference. For information, contact Sarah Wilkinson, Second
 International Conference on Inorganic Materials, Elsevier Science Ltd.,
 The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB, United
 Kingdom; telephone +44 1865 843691; telefax +44 1865 843958; e-mail
 <a href="mailto:sm.wilkinson@elsevier.co.uk">sm.wilkinson@elsevier.co.uk.</a>
 <hr>
<p>
 RESOURCES
<p>
 Information
<p>
 Proceedings: Nano-Crystalline and Thin Film Magnetic Oxides --
 Proceedings of the NATO Advanced Research Workshop on Ferrimagnetic
 Nano-crystalline and Thin Film Magneto-optical and Microwave Materials,
 Sozopol, Bulgaria, Sept. 27 - Oct. 3, 1998, edited by Ivan Nedkov and
 Marcel Ausloos. The development of planar devices for high-density
 magnetic and magneto-optical recording, and microwave integral
 technologies has led to a substantial growth of scientific interest in
 nano-crystalline and thin film magnetic oxides, such as ferrites,
 manganates, and cuprates. Book deals with three main areas in the study
 of magnetic oxides for microwave and magneto-optical applications: thin
 films and nano-crystalline ferroxides, magnetic behavior and
 applications of oxides with perovskite structures, and nano-sized
 materials and modeling. Readership: teachers, researchers, and
 academic and industrial-level workers concerned with magnetic oxides.
 Publ. 1999; 396 pp.; $189 (HB), $75 (PB); ISBN ISBN 0-7923-5872-4 (HB),
 ISBN 0-7923-5873-2 (PB). For ordering information (in the Americas),
 contact Kluwer Academic Publishers, Order Department, P.O. Box 358,
 Accord Station, Hingham, MA 02018-0358; telephone (781) 871-6600;
 telefax (781) 871-6528; e-mail <a href="mailto:kluwer@wkap.com">kluwer@wkap.com.</a> For all other
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 <a href="http://www.wkap.nl/kaphtml.htm/HOMEPAGE">http://www.wkap.nl/kaphtml.htm/HOMEPAGE.</a>
<p>
 <hr>
<p>
 High-Tc Update is the high-Tc superconductivity information exchange
 newsletter. Please send 1) preprints, reprints, and other research
 reports; 2) descriptions of on-going work; 3) meeting announcements and
 summaries.
<p>
 The information contained herein is intended for limited distribution.
 Readers are expected to respect the rights of the authors.
<p>
 Please address all contributions and inquiries to:
<p>
 Dr. Sreeparna Mitra, A219 Physics
 Ames Laboratory/Iowa State University
 Ames, Iowa 50011-3020
 Telephone: (515) 294-3877 Telefax: (515) 294-1134
 E-mail: <a href="mailto:MITRA@AMESLAB.GOV">MITRA@AMESLAB.GOV</a> or <a href="mailto:MITRA@IASTATE.EDU">MITRA@IASTATE.EDU</a>
<p>
 Project Director/Editor: Sreeparna Mitra
 Science Editor: John R. Clem
 High-Tc Update, Vol. 13, #22, November 15, 1999.
 <hr>