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Applications
This issue of High-Tc Update contains a number of papers summarizing the rapid progress being made in developing applications of high-temperature superconductivity. Some of these were presented at the recent Applied Superconductivity Conference (August 25-30) in Pittsburgh.
American Superconductor Corporation (ASC) and its partners, Pirelli Cable Corporation (PCC) and the Electric Power Research Institute (EPRI), with additional support from the Department of Energy (DOE), are developing a commercially viable high-temperature-superconducting power transmission cable. As summarized by D. M. Buczek (ASC) et al., the first phase of this program, the fabrication and testing of a 50-meter conductor for a power transmission cable, is complete. Over 12,000 meters of composite (Bi,Pb)-2223/Ag tapes were manufactured and tested for this project.
Progress in the development of Bi-2212/Ag composite tapes is reported by K. R. Marken et al. (Oxford Instruments). The authors report that coils made using a wind-and-react technique yielded self-field Jc values greater than 10^5 A/cm^2 over 17 m lengths at 4.2 K. The authors also report values of Jc(4.2K) above 5 x 10^4 A/cm^2 in a field of 17 T. A related paper by S. M. Ting et al. (Oxford Instruments) reports the development of 120-1000 A current leads using dip-coated Bi-2212 tape. Because of its low thermal conductivity, a Ag0.89Au0.11 alloy was the material of choice for the substrate and sheathing of the current leads.
The design, development, and performance of coils for a 125 HP motor are reported by J. P. Voccio et al. (ASC). The windings, using multifilamentary Bi-2223/Ag, achieved an engineering current density above 6.3 x 10^3 A/cm^2 at the 27 K operating temperature. A related paper by J. M. Seuntjens and G. Snitcher (ASC) discusses the prospects for high-temperature superconductor composites for high-energy-physics applications (in high magnetic fields, >12T, at 4.2 K and in low magnetic fields, ~2 T, at temperatures above 30 K) and reports that Bi2223 offers unique advantages over Nb3Sn. The authors discuss issues of Jc, field quality, magnet stability, strain tolerance, and
manufacturability.
A paper by S. S. Kalsi (ASC) et al. describes the design, construction, and testing of a 100 A, 5 kJ superconducting magnetic energy storage (SMES) magnet. The magnet, consisting of a solenoidal coil of Bi-2223 reacted before winding, was built by ASC for the Gesellschaft fuer Innovative Energieumwandlung und Speicherung (EUS) of Germany. The magnet operates at ~25 K and can be ramped from zero to 100 A in 2 s and back to zero current in 2 s. One hundred sequential ramp-up/ramp-down cycles could be accommodated before the magnet exceeded the allowable temperature rise.
Research toward the development of a one-channel heart-monitoring system for noninvasive measurements in an unshielded environment is reported by S. Brabetz et al. (Jena). This system could be used to obtain information about the patient's condition in serial examinations and in emergency cases. Both step-edge and bicrystal Josephson junctions were used to prepare planar galvanically coupled thin-film gradiometers and magnetometers. Magnetocardiograms were measured in a magnetically shielded room. Further progress is expected in reducing the noise in unshielded environments.
Methods of ambient magnetic noise reduction for high-Tc SQUID applications are discussed by N. Tralshawala et al. (TCSUH). The authors discuss the use of high-temperature-superconducting (HTS) passive magnetic shields, active noise cancellation, and digital signal processing.
Femtosecond time-resolved measurements of the photoresponse of microbridges in epitaxial YBa2Cu3O7-d (YBCO) thin films, performed using an electro-optic sampling technique, are reported by M. Lindgren (Rochester) et al. The test structures consisted of 5-micrometer-wide, 7-micrometer-long microbridges incorporated into 4-mm-long coplanar waveguides fabricated in 100-nm-thick, high-quality epitaxial YBCO films grown on LaAlO3 by laser deposition. The results show that a YBCO microbridge can intrinsically operate as a photodetector at rates exceeding 100 Gbit/s, making it useful as an optical-to-electrical transducer for optoelectronic interfaces in YBCO digital electronics. The authors also note that YBCO mixers, based on hot-electron effects, should exhibit an intrinsic bandwidth exceeding 100 GHz.
A high-Tc GdBa2Cu3O7-d superconducting-transition-edge bolometer supported by a 1-micrometer-thick Si3N4 membrane has been made by M.J.M.E. de Nivelle (SRON-Utrecht) et al. A crucial component of the bolometer, which operates at 85 K, is a thin single-crystal Si layer on top of the Si3N4 enabling epitaxial growth of the superconductor. This layer was prepared by direct bonding of the Si3N4 to Si, followed by etch back of the Si. The bolometer is intended for a Fabry-Perot-based satellite instrument for remote sensing of atmospheric OH by detection of its 84 micrometers emission line. The authors expect that further improvements will enable this device to exceed the sensitivity of HgxCd1-xTe detectors operated at 77 K.
YBa2Cu3O7-d
New features in precision measurements of the complex microwave conductivity of ultrapure YBa2Cu3O6.95 crystals are reported by H. Srikanth (Northeastern) et al. Additional pairing is seen developing at about 65 K, and a second normal conductivity peak is observed at about 80 K. According to the authors, the data are inconsistent with a single d-wave order parameter and instead are indicative of two superconducting components. The authors stress that these results point to the presence of multiple pairing interactions in YBa2Cu3O6.95.
A paper by P. Carretta (Pavia) et al. presents evidence for superconducting fluctuations in the [63]^Cu NQR-NMR relaxation rate in YBCO, as obtained by comparing measurements carried out in the absence and in the presence of a field parallel to the c axis. The field causes a reduction in the relaxation rate W at temperatures about 10 K above Tc. This effect is related to the magnetic-field suppression of the phase-sensitive positive Maki-Thompson contribution, while the negative contribution from the density of states fluctuations is almost fieldindependent. The authors stress that the existence of the Maki-Thompson contribution to W is evidence for an s-wave-symmetry pairing component.
As reported by G. Cannelli (Calabria) et al., the temperature dependence of the elastic energy loss of YBa2Cu3O7-d has been measured for several oxygen stoichiometries. Three peaks are observed for d = 0.07, and the authors focus their attention on the one occurring at the lowest temperature (~50 K). The authors suggest that the most natural way to interpret this peak is via the formation and reorientation of bipolarons among orbitals that are occupied by holes only at the highest O stoichiometries.
Bi Cuprates
A photoemission study by M. Grioni (EPF-Lausanne) et al. has examined
the effects of carrier concentration on the electronic structure of the
CuO2 planes in Bi2Sr2CaCu2O8+d (Bi-2212) and Sr2CuO2Cl2. The authors
find that the size of the Fermi surface does not appear to obey
Luttinger's theorem; instead, in underdoped Bi2Sr2CaCu2O8+d samples with
Tc ~ 30 K, it is 30 times smaller than in optimally doped samples. They
also find that the electronic states forming the Fermi surface near the
Four-contact electrical measurements on highly anisotropic whiskers of
Bi-2212 and Bi-2223 have been carried out by S. Aukkaravittayapun
(Nottingham) et al. Voltage reversals were frequently observed in these
samples. The authors note that a simple model based on extreme
anisotropy and contact offsets can explain the gross features in the
ohmic flux-flow regime, but not the wealth of reversal phenomena in the
irreversible region at lower temperatures.
A preprint by N. Vasanthamohan and J. P. Singh (Argonne) reports the use
of a modified powder-in-tube technique to obtain improvements in the
transport properties and strain tolerance of Ag-sheathed Bi-2223
superconducting tapes. In this process, the Bi-2223 core is reinforced
with a silver rod placed concentrically within the silver tube, and the
product was then processed into 250-micrometer-thick tapes. The authors
obtained an improved critical current density, which they attribute to
the increased texturing, a decrease in thickness of the Bi-2223 layers,
an increase in the length of the Ag/Bi-2223 interface, and a decrease in
the fraction of the material that carries only a low critical current
density. An analysis of the critical current through various sections
of the tape indicates that 80% of the critical current is carried by the
center section of the core within which the Ag rod is located. The
bend-strain tolerance of the tapes containing a silver core also was
found to be significantly better than that of tapes without the core.
As reported by X. L. Wang et al. (Wollongong), crystals of Bi-2212 have
been grown using KCl as flux. The growth was mainly controlled by a
spiral-growth mechanism if the crystals were grown on the flux surface.
Single, double, and three-head spirals with square and polygonal shapes
were observed. Magnetization measurements showed that spiral-grown
crystals had higher flux pinning than crystals grown through a layer-bylayer mechanism. The authors suggest that the flux-pinning enhancement
may be attributable to the spiral edges and screw dislocations induced
by the spiral growth of the crystals.
Other Cuprates
A fluctuation rate of 10^[11] s^[-1] in the normal state of
Nd1.85Ce0.15CuO4 has been estimated by V. Chechersky (Drexel) et al.,
assuming that the spin fluctuations are the primary source of relaxation
phenomena affecting the shape of the Moessbauer peaks. The authors
found in the oxygenated and nonsuperconducting compound that the
magnetic order is quasistatic rather than static as is generally
believed. The spin clusters fluctuate at a rate of ~10^9 s^[-1] below
the Neel temperature. The authors suggest that these findings may bear
on the possible correlation between antiferromagnetic spin fluctuations
and superconductivity.
A preprint by S. M. Loureiro et al. (Grenoble) stresses the importance
of the precursor in high-pressure synthesis of Hg-based cuprates. The
authors point out that the average copper valence
Vortices
The ac magnetic susceptibility of YBa2Cu3O7-d single crystals with
columnar defects has been investigated by G. Pasquini (Buenos Aires) et
al. The authors find for vortices parallel to the defects that the
linear response is mainly determined by the Campbell penetration depth
with a field-independent Labusch parameter, indicating that vortices are
individually pinned. The small dissipation in this limit is likely to
arise from thermal fluctuations of vortex segments between pairs of
metastable states (two-level systems) in the Bose-glass phase. Tilting
vortices away from the tracks results in a reduction of the Bose-glass
temperature and an increase of the dissipation due to reduced pinning
forces. The authors also discuss the onset of a nonlinear response as
the ac field increases.
A Ginzburg-Landau theory for d_[x^2-y^2]-wave superconductors has been
constructed by N. Enomoto et al. (Okayama), who start from the Gor'kov
equation and include correction terms up to the next order in ln(Tc/T).
The authors find that some of the nonlocal correction terms break the
cylindrical symmetry and lead to a fourfold symmetric vortex-core
structure, reflecting the internal degrees of freedom in the pair
potential. Using this extended Ginzburg-Landau theory, the authors
investigate the fourfold symmetric structure of the pair potential,
current density, and magnetic field around an isolated vortex, and they
clarify how the vortex-core structure deviates from cylindrical symmetry
in d_[x^2-y^2]-wave superconductors.
A preprint by I. Affleck (UBC and McMaster) et al. describes a
theoretical formulation of the London free energy including four-fold
anisotropies that could arise from d-wave pairing or other sources in a
tetragonal material. The authors use this model to study vortex-lattice
structure and to discuss neutron scattering, STM, Bitter decoration, and
muSR experiments.
Theory
The quantum Monte Carlo method has been used by K. Kuroki et al. (Tokyo)
to examine superconductivity in the single-band Hubbard model in two
dimensions. Instead of conventional pairing, the authors consider
correlated pairing in the context of the t-J model, the strong-coupling
limit of the Hubbard model. The authors find that pairing in the d-wave
channel possesses both a divergence like 1/T in the pairing
susceptibility and a growth of the ground-state pairing correlation with
sample size, indicating off-diagonal long-range order near (but not
exactly at) half-filling.
A preprint by F. Marsiglio (Chalk River and McMaster) reports a
calculation of the ground-state energy and energy gap to the first
excited state for the attractive Hubbard model in one dimension using
both the Bethe Ansatz equations and the variational BCS wavefunction.
Comparisons are provided as a function of coupling strength and electron
density. While the ground-state energies are always in very good
agreement, the BCS energy gap is sometimes incorrect by an order of
magnitude, particularly at half-filling.
Density-matrix renormalization-group results for the ground-state
properties of two-leg Hubbard ladders have been obtained by R. M. Noack
(Wuerzburg) et al. According to the authors, the half-filled Hubbard
ladder is an insulating spin-gapped system, exhibiting a crossover from
a spin liquid to a band insulator as a function of the interchain
hopping matrix element. When the system is doped, there is a parameter
range in which the spin gap remains. In this phase, the doped holes
form singlet pairs, and the pair field and 4k_F density correlations
associated with pair-density fluctuations decay as power laws, while the
2k_F charge-density-wave correlations decay exponentially. The authors
discuss the behavior of the exponents of the pairing and density
correlations within this spin-gapped phase.
A preprint by R. Grassme and P. Seidel (Jena) presents an analytical
approximation for the BCS gap equation with an extended van Hove
singularity. This model explains a high transition temperature Tc and
low isotope exponents alpha for small coupling parameters N_0V.
Considering d-wave and anisotropic s-wave order-parameter symmetry, C.
Buzea (Tohoku) et al. have studied the isotope-effect coefficient alpha
as a function of the degree of gap anisotropy, the ratio Tc/T_[cmax],
and the dopant content x for single-CuO2 layer superconductors. The
authors find that the theoretical results for anisotropic s-wave
symmetry can fit the experimental alpha(x) data for La2-xSrxCuO4 and
La2-xBaxCuO4.
Thin Films
As reported by L. P. Guo (SUNY-Buffalo) et al., epitaxial, c-axisaligned superconducting thin films of Tl0.78Bi0.22Sr1.6Ba0.4Ca2Cu3O9-d
[(Tl,Bi)-1223] on (001) YSZ single-crystal substrates have been
synthesized by laser ablation and post-annealing in flowing pure argon.
Four-terminal electrical transport measurements showed that the zeroresistance transition temperature Tc was 108.5 K, and the critical
current density Jc at 77 K and zero field was 1.1 x 10^6 A/cm^2 for both
the entire film width and a patterned bridge. The magnetic-fielddependent transport Jc suggests that (Tl,Bi)-1223 films on (001) YSZ
have better flux-pinning properties than such films on (001) LaAlO3.
A paper by H. Weyten et al. (Mol) reports that c-axis-oriented
YBa2Cu3O7-d high-Tc superconducting films have been deposited in situ by
means of a plasma-assisted metal-organic chemical-vapor-deposition
(PAMOCVD) process on LaAlO3. A high-speed rotating disc reactor was
used to deposit the films at a substrate temperature of 600^oC to
800^oC. The critical temperature Tc of the films was about 90 K, and
the critical current density Jc was found to be higher than 10^6 A/cm^2
at 77 K and zero field.
Magneto-optic imaging has been used by M. Baziljevich (Oslo) et al. to
observe magnetic-field patterns and calculate current patterns in
YBa2Cu3O7-d thin films in which slits were patterned. In the presence
of a weak perpendicular magnetic field, twin lobes of opposite flux
polarity were found near the slits and inside the Meissner region. The
lobe closest to the sample edge was found to be polarized opposite to
the applied field. The authors found that the anomalous flux generation
is reversible at weak fields. However, at higher fields, but still
small enough to keep the vortex penetration front away from the slits,
the anomalous current nucleates vortex lines, which become trapped when
the applied field is removed.
The microwave-field-dependent surface resistance R_s(B_[hf]) of
unpatterned epitaxial YBa2Cu3O7-d films has been measured by M. Hein et
al. (Wuppertal) at 19 GHz between 4.2 K and 80 K using a Nb-shielded
sapphire resonator. In addition, the authors investigated the dc-fielddependent R_s(B_[dc]) at 87 GHz and 4.2 K using a Cu host cavity. The
critical values (B_[hf]^[cr]) of the microwave field amplitudes, at
which R_s(B_[hf]) began to rise sharply, were found to be 27 mT, 23 mT,
and 15 mT at 4.2 K, 50 K, and 77 K, respectively, with no detectable
degradation of R_s at lower fields. Similarly, R_s stayed constant at
4.2 K up to the critical value B_[dc]^[cr] = 40 mT. The authors present
evidence that both B_[hf]^[cr] and B_[dc]^[cr] are fundamentally limited
by the lower critical field B_[c1], which depends upon the qualitydependent penetration depth lambda_L. The R_s(B_[hf]) performance
obtained for the best YBa2Cu3O7-d films already comes close to this
limit.
A preprint by T. Bade (Belfast) et al. reports the excitation of midinfrared surface plasmons in two YBCO thin films of contrasting
properties using attenuated total reflection of light. The authors
found that the imaginary part of the dielectric function decreases
linearly as the temperature is reduced. The authors propose an
explanation in terms of temperature-dependent intrinsic intragrain
inelastic scattering and temperature-independent contributions from
elastic and inelastic grain-boundary scattering and optical interband
absorption.
Monophase thin films of the oxycarbonates Ba2-xSrxCuO2CO3 have been
grown by W. Prellier (Caen) et al. using pulsed-laser deposition (PLD)
on [110]-oriented NdGaO3 substrates for x = 2, 1.6, 0.9, 0.4, and 0.3.
The authors found that, as x decreases, the film orientation varies from
a-axis or [110] orientation (CuO2 layers perpendicular to the substrate)
to c-axis or [001] orientation (CuO2 layers parallel to the substrate).
Other Activities
As reported by M. Karppinen (Helsinki University of Technology) et al.,
several methods of chemical analysis (redox titrations and
thermogravimetric approaches) have been developed to establish the
oxygen content and determine the higher oxidation states of copper and
other mixed-valent metals in various superconducting and related
cuprates. The authors discuss the potential and applicability of each
method and summarize the obtained experimental results.
A paper by W. M. Chen et al. (Nanjing) reports the use of a modified
double iodometric titration to determine the oxygen content of cuprates
doped with Fe and Co. The authors determined the oxygen content in
samples of LaBa2Cu3-xFexOy and YBa2Cu3-xFexOy using an improved double
iodometric titration method in which ammonium hydrogen fluoride is used
as an interference-free agent.
Using a theory for superconductivity in a system including both
electron-electron repulsion and phonon-mediated attraction at halffilling [J. Phys. Soc. Jpn. 65, 1544 (1996)], Y. Takada (Tokyo) has
explained the anomalous isotope effect observed by Chen and Lieber in
superconducting alkali-metal-doped fullerenes.
Oscillations of the nonlinear flux-flow resistance R(H) as a function of
a parallel magnetic field 6 T < H < 9 T have been observed by A.
Gurevich et al. (Wisconsin) in NbTi/Cu multilayers. The authors find
that the oscillations in R(H), which have the field period Delta-H ~~
0.1 T independent of temperature and current, indicate long-range order
in the rapidly moving vortex structure. The critical current I_c(H), on
the other hand, exhibits no oscillations. The authors propose an
explanation of this effect in terms of dynamic matching of the moving
vortex lattice with periodic microstructure, and they show that both
Delta-H and the amplitude of the oscillations of R(H) are inversely
proportional to the sample thickness.
Overviews
A review by F. Goemoery (Bratislava and Pirelli-Milano) considers the
characterization of high-temperature superconductors via ac magnetic
measurements using lock-in techniques. The author discusses how to
obtain the resistivity, critical temperatures and fields, London and
Campbell penetration depths, critical current density, granularity,
content of superconducting phase, irreversibility line, and pinning
potential from ac data. A separate section deals with samples of
nonideal shapes, including finite-height cylinders, parallelepipeds, and
thin films in a transverse field (255 refs.).
A personal overview of the development of the field of high-temperature
superconductivity during the past ten years has been prepared by C. W.
Chu (TCSUH). The author focuses on materials with Tc above the liquidnitrogen boiling temperature of 77 K (45 refs.).
The use of ion-beam techniques to study oxygen diffusion in YBa2Cu3O7-d
films is reviewed by Y. P. Li (TCSUH) et al. The authors discuss (a)
implanting [18]^O into YBCO films as a tracer; (b) SIMS depth profiling
of the exchanged [18]^O (without irradiation damage) and the asimplanted [18]^O concentration distributions, and their evaluation
during annealing; and (c) analyzing the relative [18]^O content and
depth distributions with the [18]^O(p,alpha)[15]^N nuclear reaction (13
refs.).
Ph.D. Thesis
The crystal growth of SmBa2Cu3O7-d high-temperature superconductors by
modified top-seeded solution growth (TSSG) has been investigated in the
Goettingen Ph.D. thesis of Ch. Krauns, the research having been done in
Japan at SRL-ISTEC. The author analyzes the suitability of prospective
crucible materials, investigates phase diagrams and liquidus lines, and
describes the TSSG method, which has produced crystals of size 30 mm x
30 mm parallel to the CuO2 planes. The thesis is in German with
summaries in English and Japanese (136 refs.).
Contributed by John R. Clem
High-Tc Update is available without charge to interested persons.
Recipients are expected to participate in this information exchange by
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Contributions to defray the cost of newsletter printing and mailing are
welcome.
Ian Affleck, Marcel Franz, and M. H. Sharifzadeh Amin, "Generalized
London Free Energy for High-Tc Vortex Lattices." Department of Physics
and Astronomy and Canadian Institute for Advanced Research, University
of British Columbia, Vancouver, BC, V6T 1Z1, CANADA.
S. N. Artemenko and W. Wonneberger, "Unified Theory of Phasons and
Polaritons in Charge Density Wave Systems." Manuscript #6.2012; to be
published in Schegolev Memorial Vol. of J. de Physique I. Contact W.
Wonneberger, Department of Physics, University of Ulm, D-89069 Ulm,
GERMANY; telefax +49 731 502 3003; e-mail wonneberger@physik.uni-ulm.de.
72.15.Nj; 71.36.+c; 73.61.-r.
S. Aukkaravittayapun, P. J. King, K. A. Benedict, Yu. I. Latyshev, I. G.
Gorlova, S. Zybtsev, A. Campbell, R. A. Doyle, J. Johnson, and W. S.
Seow, "Four Contact Electrical Measurements on the Anisotropic High Tc
Superconductors: Voltage Reversals." To be published in Physica C (in
press). Contact P. J. King, Department of Physics, University of
Nottingham, Nottingham NG7 2RD, UNITED KINGDOM; telefax +44 115 951
5180; e-mail ppzpjk@ppn1.nott.ac.uk. Key words: voltage reversal,
anisotropy, layered superconductor, whisker.
J. Ayache, J. P. Contour, C. Dolin, M. Drouet, and D. Ravelosona,
"Growth Defects and Interface Roughness in YBa2Cu3O7/SrTiO3
Superlattices Grown by Pulsed Laser Ablation." Presented at the High
Temperature Superconductor Thin Films -- Growth Mechanisms, Interfaces,
Multilayers: HTS Symposium at the 1996 E-MRS Spring Conference,
Strasbourg, France, June 4-7, 1996; to be published in J. Alloys and
Compounds. CSNSM-CNRS Batiment 108, F-91405 Orsay Campus, FRANCE; J. P.
Contour's telephone +33 1 69 33 91 84; telefax +33 1 69 33 07 40; e-mail
contour@thomson-lcr.fr.
T. Bade, P. G. McCafferty, C. Rea, P. Dawson, R. J. Wallace, R. M.
Bowman, D. G. Walmsley, and J. H. Clark, "Temperature Dependence of the
Mid-Infrared Dielectric Function of YBCO in the ab Plane." To be
published in Physica C. Contact R. M. Bowman, Department of Pure and
Applied Physics, Queen's University of Belfast, Belfast BT7 1NN, UNITED
KINGDOM; telephone +44 1232 245133, ext. 3572; telefax +44 1232 438918;
e-mail r.m.bowman@qub.ac.uk. Keywords: infrared spectroscopy, optical
reflectivity, plasmon, thin film, superconductor.
M. Baziljevich, T. H. Johansen, H. Bratsberg, Y. Shen, and P. Vase,
"Magneto-Optic Observation of Anomalous Meissner Current Flow in
Superconducting Thin Films with Slits." To be published in Appl. Phys.
Lett. Nov. 25, 1996. Department of Physics, University of Oslo, P.O.
Box 1048, Blindern, 0316 Oslo, NORWAY; T. H. Johansen's e-mail
t.h.johansen@fys.uio.no.
S. Brabetz, R. Weidl, F. Klemm, L. Doerrer, F. Schmidl, and P. Seidel,
"Development of a Heart Monitoring System with High-Tc dc-SQUID
Gradiometers." Presented at the Weak Superconductivity Symposium (WSS
'96), Smolenice, Slovak Republic, Aug. 4-7, 1996; submitted to J. Low
Temp. Phys. Institut fuer Festkoerperphysik, Friedrich-SchillerUniversitaet Jena, Max-Wien-Platz 1, D-07743 Jena, GERMANY; P. Seidel's
telephone +49 3641-635685 or -635681; telefax +49 3641-635681; e-mail
seidel@ifk.uni-jena.de. 87.40.+w.
D. M. Buczek, L. J. Masur, P. K. Miles, F. Sivo, D. Marlowe, E. R.
Podtburg, D. R. Parker, S. Fleshler, J. D. Scudiere, P. Metra, M. Nassi,
M. Rahman, and D. W. Von Dollen, "Manufacturing of HTS Composite Wire
for a Superconducting Power Transmission Cable Demonstration. Presented
at the Appl. Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30,
1996. American Superconductor Corporation, Two Technology Drive,
Westborough, MA 01581; telephone (508) 836-4200; telefax (508) 836-4248;
e-mail amcgee@asc.mhs.compuserve.com.
Cristina Buzea, Tsutomu Yamashita, Kensuke Nakajima, Calin Gh. Buzea,
and Maricel Agop, "The Isotope Effect Coefficient Dependence on
Nonstoichiometry for Single CuO Layer Superconductors." To be published
in Physica C (in press). Research Institute of Electrical Communcation,
Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-77, JAPAN; e-mail
cristi@riec.tohoku.ac.jp. Key words: isotope effect, single Cu-O layer
superconductors, pair-breaking time, critical temperature, dopant
content.
G. Cannelli, R. Cantelli, F. Cordero, F. Trequattrini, and M. Ferretti,
"Strong Dependence on Doping of a Low Activation Energy Relaxation
Process in YBa2Cu3O6+x: Possible Polaron Relaxation." To be published
in Phys. Rev. B. Universita della Calabria, Dip. di Fisica, Arcavacata
di Rende (CS) I-87036, ITALY; F Cordero's telephone +39 6 3036 5765;
telefax +39 6 3036 5341; e-mail cordero@idac.rm.cnr.it.
P. Carretta, D. V. Livanov, A. Rigamonti, and A. A. Varlamov,
"Superconducting Fluctuations and [63]^Cu NQR-NMR Relaxation in YBCO:
Effect of Magnetic Field and a Test for the Pairing State Symmetry." To
be published in Phys. Rev. B. Department of Physics "A. Volta", Sezione
INFN and Unita INFM, University of Pavia, Via Bassi 6, I-27100 Pavia,
ITALY; +39 382-507471 or -507474; telefax +39 382-507563; e-mail
carretta@pavia.infn.it. 74.40.+k; 76.60.Es; 74.20.-z.
M. S. Chae, M. T. Simnad, M. B. Maple, S. Anders, A. Anders, and I. G.
Brown, "Properties of Cathodic Arc Deposited High-Temperature
Superconducting Composite Thin Films on Ag Substrates." To be published
in Physica C (in press). Contact M. B. Maple, Institute for Pure and
Applied Physical Sciences, University of California at San Diego, La
Jolla, CA 92093-0360; telefax (619) 534-1241. Key words: hightemperature superconductor, Bi2212, thin film.
Vladimir Chechersky, Nikolai S. Kopelev, Amar Nath, J.-L. Peng, Richard
L. Greene, Beom-hoan O, Michael I. Larkin, and John T. Markert, "Spin
Dynamics in the Nd2-xCexCuO4 System: Estimation of the Rate of Spin
Fluctuations." To be published in Phys. Rev. B. Contact Amar Nath,
Department of Chemistry, Drexel University, Philadelphia, PA 19104; email amar_nath@coasmail.drexel.edu. 76.80.+y; 75.30.Kz.
W. M. Chen, W. Hong, J. F. Geng, X. S. Wu, W. Ji, L. Y. Li, L. Qui, and
X. Jin, "Iodometric Titration for Determining the Oxygen Content of
Samples Doped with Fe and Co." To be published in Physica C (in press).
Department of Physics and National Laboratory of Solid State
Microstructures, Nanjing University, Nanjing 210093, PEOPLE'S REPUBLIC
OF CHINA.
May Chiao, Benoit Lussier, Brett Ellman, and Louis Taillefer, "Heat
Conduction in the Heavy Fermion Superconductor UPd2Al3." Presented at
the Int. Conf. of Strongly Correlated Electron Systems (SCES '96),
Zurich, Switzerland, Aug. 19-22, 1996; to be published in Physica B.
Contact Louis Taillefer, Department of Physics, McGill University, 3600
University Street, Montreal, Quebec H3A 2T8, CANADA; telephone (514)
398-6476; telefax (514) 398-6526; e-mail louis@physics.mcgill.ca. Key
words: heavy-fermion superconductivity, UPd2Al3, thermal conductivity.
74.70.Tx; 74.25.Fy.
C. W. Chu, "High-Temperature Superconducting Materials: A Decade of
Impressive Advancement of Tc." Preprint #96:109; presented at the Appl.
Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30, 1996. Texas
Center for Superconductivity at the University of Houston, Houston, TX
77204-5932; telephone (713) 743-8200; telefax (713) 743-8201; e-mail
preprints @www.tcs.uh.edu.
J. P. Contour, M. Drouet, B. Fisher, L. Patlagan, and D. Ravelosona,
"Structural and Electrical Properties of PrBa2Cu3-xGaxO7 (x=0.2) Thin
Films and [(PrBa2Cu3-xGaxO7)M/(YBa2Cu3O7)N]P Superlattices Grown by
Pulsed Laser Deposition." To be published in J. Alloys and Compounds.
Unite Mixte de Physique, Thomson-CSF, CNRS, Domaine de Corbeville, F91404 Orsay Cedex, FRANCE; telephone +33 1 69 33 91 84; telefax +33 1 69
33 07 40; e-mail contour@thomson-lcr.fr.
M. Covington, F. Xu, C. A. Mirkin, W. L. Feldmann, and L. H. Greene,
"Tunneling Spectroscopy of Superconducting Y1-xPrxBa2Cu3O7 Thin Films."
Presented at the XXI Int. Conf. on Low Temperature Physics (LT21),
Prague, Czech Republic, Aug. 8-14, 1996; to be published in Czech. J.
Phys. Contact L. H. Greene, Department of Physics, Loomis Laboratory of
Physics, University of Illinois at Urbana-Champaign, 1110 West Green
Street, Urbana, IL 61801-3080; telephone (217) 333-7315; telefax (217)
244-7187; e-mail lhg@uiuc.edu.
M.J.M.E. de Nivelle, M. P. Bruijn, R. de Vries, J. J. Wijnbergen, P.A.J.
de Korte, S. Sanchez, M. Elwenspoek, T. Heidenblut, B. Schwierzi, W.
Michalke, and E. Steinbeisse, "High-Tc Superconducting Bolometer for
Atmospheric OH Observation." Presented at the 30th ESLAB Symposium,
ESTEC, Noordwijk, The Netherlands, Sept. 24-26, 1996. Space Research
Organization Netherlands, Sorbonnelaan 2, 3584 CA Utrecht, THE
NETHERLANDS; telephone +31 30 253-8561 or -5600; telefax +31 30 2540860; e-mail m.denivelle@sron.ruu.nl.
E. A. Demler, G. B. Arnold, and M. R. Beasley, "Superconducting
Proximity Effects in Magnetic Metals." Submitted to Phys. Rev. B.
Department of Physics, Stanford University, Stanford, CA 94305.
W. Diete, M. Getta, M. Hein, T. Kaiser, G. Mueller, H. Piel, and H.
Schlick, "Surface Resistance and Nonlinear Dynamic Microwave Losses of
Epitaxial HTS Films." Presented at the Appl. Supercond. Conf. (ASC'96),
Pittsburgh, PA, Aug. 25-30, 1996. Contact T. Kaiser, Department of
Physics, University of Wuppertal, Gauss Str. 20, D-42097 Wuppertal,
GERMANY; e-mail kaiser@wpos4.physik.uni-wuppertal.de.
Naoki Enomoto, Masanori Ichioka, and Kazushige Machida, "Ginzburg Landau
Theory for d-Wave Pairing and Fourfold Symmetric Vortex Core Structure."
Submitted to J. Phys. Soc. Jpn. Department of Physics, Okayama
University, Tsushima, Okayama 700, JAPAN; Masanori Ichioka's e-mail
oka@mp.okayama-u.ac.jp or oka@ton.scphys.kyoto-u.ac.jp; preprint also
available at supr-con@xxx.lanl.gov (#9609004). Key words: d-wave
superconductor, vortex core structure, Ginzburg-Landau theory.
74.60.Ec; 74.72.-h.
Fedor Goemoery, "Characterization of High Temperature Superconductors by
ac Magnetic Measurements Using Lock-in Technique." Submitted to
Supercond. Sci. and Technol. Pirelli Cavi SpA - c. 2714 Viale Sarca
222, I-20126 Milano, ITALY.
R. Grassme and P. Seidel, "The BCS Gap Equation Within the van Hove
Scenario of High-Tc Superconductivity." To be published in J.
Supercond. Institut fuer Festkoerperphysik, Friedrich-SchillerUniversitaet Jena, Max-Wien-Platz 1, D-07743 Jena, GERMANY; P. Seidel's
telephone +49 3641-635685 or -635681; telefax +49 3641-635681; e-mail
seidel@ifk.uni-jena.de. Key words: high-Tc superconductivity, energy
gap, van Hove singularity, critical temperature, isotope effect.
74.25.-q; 74.72.-h; 74.62.-c.
L. H. Greene, J. F. Dorsten, I. V. Roshchin, A. C. Abeyta, T. A. Tanzer,
G. Kuchler, W. L. Feldmann, and P. W. Bohn, "Raman Scattering as a Probe
of the Superconducting Proximity Effect." Presented at the XXI Int.
Conf. on Low Temperature Physics (LT21), Prague, Czech Republic, Aug. 814, 1996; to be published in Czech. J. Phys. Department of Physics,
Loomis Laboratory of Physics, University of Illinois at UrbanaChampaign, 1110 West Green Street, Urbana, IL 61801-3080; telephone
(217) 333-7315; telefax (217) 244-7187; e-mail lhg@uiuc.edu.
M. Grioni, H. Berger, S. Larosa, I. Vobornik, F. Zwick, G. Margaritondo,
R. Kelley, J. Ma, and M. Onellion, "Doping Effects on the Electronic
Structure of CuO2 Planes." To published in Physica B. Institut de
Physique Appliquee, Ecole Polytechnique Federale, CH-1015 Lausanne,
SWITZERLAND; telephone +41 21 693 5479; e-mail
marco.grioni@ipa.dp.epfl.ch. Key words: cuprates, electronic stucture,
photoemission. 74.25.Jb; 74.72.Hs; 79.60.Bm.
L. P. Guo, Z. F. Ren, J. Y. Lao, J. H. Wang, D. K. Christen, C. E.
Klabunde, and J. D. Budai, "Epitaxial Superconducting Thin Films
Tl0.78Bi0.22Sr1.6Ba0.4Ca2Cu3O9-d on (001) YSZ Synthesized by Laser
Ablation and Post-Annealing in Pure Argon." Submitted to Appl. Phys.
Lett. Contact J. H. Wang, Superconductive Materials Laboratory,
Department of Chemistry and New York State Institute on
Superconductivity, State University of New York at Buffalo, Buffalo, NY
14260-3000; Z. F. Ren's e-mail zren@acsu.buffalo.edu.
A. Gurevich, E. Kadyrov, and D. C. Larbalestier, "Dynamic Matching of
Vortex Lattice in Superconducting Multilayers." Submitted to Phys. Rev.
Lett. Applied Superconductivity Center, University of Wisconsin,
Madison, WI 53706; telephone (608) 263-2549; telefax (608) 263-1087; email gurevich@coefac.engr.wisc.edu. 74.60.Ge.
T. E. Harrington, J. Wosik, and S. A. Long, "Open Resonator Mode
Patterns for Characterization of Anisotropic HTS Thin Films and
Dielectrics." Preprint #96:106; submitted to the Proc. of the Appl.
Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30, 1996. Texas
Center for Superconductivity at the University of Houston, Houston, TX
77204-5932; telephone (713) 743-8200; telefax (713) 743-8201; e-mail
preprints @www.tcs.uh.edu.
M. K. Hasan, J. S. Kouvel, H. B. Radousky, T. J. Goodwin, and R. N.
Shelton, "Vortex Pinning in Polycrystalline Eu1.5Ce0.5Sr2Cu2NbO10 from
Rotational Magnetic Measurements." To be published in Physica C (in
press). Contact J. S. Kouvel, Department of Physics, University of
Illinois, Chicago, IL 60607-7059; telefax (312) 996-9016.
Matthias Hein, Wolfgang Diete, Markus Getta, Stefan Hensen, Thomas
Kaiser, Guenter Mueller, Helmut Piel, and Hardy Schlick, "Fundamental
Limits of the Linear Microwave Power Response of Epitaxial Y-Ba-Cu-O
Films." Presented at the Appl. Supercond. Conf. (ASC'96), Pittsburgh,
PA, Aug. 25-30, 1996. Contact Thomas Kaiser, Department of Physics,
University of Wuppertal, Gauss Str. 20, D-42097 Wuppertal, GERMANY; email kaiser@wpos4.physik.uni-wuppertal.de.
Erik Heinz and Paul Seidel, "Microwave-Induced Steps in Josephson
Junctions, dc-SQUIDS and Parallel Arrays." Presented at the Weak
Superconductivity Symposium (WSS '96), Smolenice, Slovak Republic, Aug.
4-7, 1996; submitted to J. Low Temp. Phys. Institut fuer
Festkoerperphysik, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz
1, D-07743 Jena, GERMANY; Paul Seidel's telephone +49 3641-635685 or
-635681; telefax +49 3641-635681; e-mail seidel@ifk.uni-jena.de.
85.25.Cp; 74.50.+r; 85.25.Dq.
J. D. Hettinger, K. E. Gray, D. J. Miller, D. H. Kim, D. G. Steel, B. R.
Washburn, J. Sharping, C. Moreau, M. Eddy, J. E. Tkaczyk, J. DeLuca, J.
H. Kang and J. Talvacchio, "Identification of Grain Boundary Effects in
Current-Voltage Curves of Polycrystalline High-Tc Superconductors."
Contact Janice Coble, Argonne National Laboratory, 9700 South Cass
Avenue, Argonne, IL 60439; telefax (708) 252-9595; e-mail
janice_coble@qmgate.anl.gov. 74.40.+k; 74.60.Ge; 74.50.+r.
A. Yu. Ignatov, A. P. Menushenkov, and V. A. Chernov, "Influence of
Oxygen Deficiency on the Electronic and Local Structure of BaPb1-xBixO3d and Ba0.6K0.4BiO3-d Superconducting Oxides: An X-ray Absorption
Study." To be published in Physica C. Department of Quantum
Electronics, Moscow Engineering Physics Institute, Kashirskoe shosse 31,
115409 Moscow, RUSSIA; telephone +7 095 324 9386; telefax +7 095 324
2111; e-mail ignatov@htsc.mephi.ru. Key words: x-ray absorption
spectroscopy (XAS), local and electronic structures, oxygen deficiency,
valence state, BaPbBiO and BaKBiO.
S. S. Kalsi, D. Aized, B. Connor, G. Snitchler, J. Campbell, R. E.
Schwall, J. Kellers, Th. Stephanblome, A. Tromm, and P. Winn, "HTS SMES
Magnet Design and Test Results." Presented at the Appl. Supercond.
Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30, 1996. American
Superconductor Corporation, Two Technology Drive, Westborough, MA 01581;
telephone (508) 836-4200; telefax (508) 836-4248; e-mail
amcgee@asc.mhs.compuserve.com.
Michael Karbach, Gerhard Mueller, and A. Hamid Bougourzi, "Two-Spinon
Dynamic Structure Factor of the One-Dimensional s=1/2 Heisenberg
Antiferromagnet." Department of Physics, University of Rhode Island,
Kingston, RI 02881-0817.
M. Karppinen, H. Yamauchi, and L. Niinistoe, "Studies on the Oxygen
Stoichiometry and Copper Valency in Superconducting Cuprates by Means of
Chemical Analysis." Presented at the Int. Symp. on Advances in
Supercond.: New Materials, Critical Currents, and Devices; Mumbai,
India, Sept. 17-20, 1996; to be published in J. Superlattices and
Microstructures. Laboratory of Inorganic and Analytical Chemistry,
Helsinki University of Technology, FIN-02150 Espoo, FINLAND; H.
Yamauchi's telephone +81 45-924 5315; telefax +81 45-921 6953 or 9245360; e-mail yamauchi@materia.titech.ac.jp.
Takenori Kashimura, Tetsuhiko Isobe, Mamoru Senna, Mitsuru Itoh, and
Tsukotomu Koizumi, "Reactive Sintering for Oriented and Connected Bi2223 Superconductive Oxides From a Mixture of Delaminated Bi-2212 and
Fine Powdered Supplemental Ingredients." To be published in Physica C
(in press). Contact Mamoru Senna, Faculty of Science and Technology,
Keio University, Yokohama 223, JAPAN; telefax +81 45 563 0446. Key
words: Bi-2223, delamination, green sheet densification, reactive
sintering, quantitative analysis of texture.
S. Keil, I. V. Vernik, T. Doderer, A. Laub, H. Pressler, R. P. Huebener,
N. Thyssen, A. V. Ustinov, and H. Kohlstedt, "Magnetic Flux Quanta in
Annular Josephson Junctions in a Barrier-Parallel dc Magnetic Field."
To be published in Phys. Rev. B. Physikalisches Institut, Lehrstuhl
Experimentalphysik II, Universitaet Tuebingen, Auf der Morgenstelle 14,
D-72076 Tuebingen, GERMANY; T. Doderer's telephone +49 70 71 297 63 19;
telefax +49 70 71 29 63 22; e-mail t.doderer@uni-tuebingen.de.
74.50.+r; 74.60.Ge; 74.60.Jg; 61.16.Bg.
Christian Krauns, "Crystal Growth of Sm1Ba2Cu3O7-d High-Temperature
Superconductors Using a Modified Czochralski Method." Submitted as a
Ph.D. thesis (University of Goettingen). Institut fuer Metallphysik,
Der Georg-August-Universitaet Goettingen, Materialforschung &
Entwicklung/Kristall-Labor, Am Windausweg 2, D-37073 Goettingen,
GERMANY; telephone +49 551 399 731; telefax +49 551 507 1750; e-mail
krauns@umpsun1.gwdg.de; web site
http://www.gwdg.de/~ckrauns1.
64.75.+g; 82.60.Lf.
N. Murali Krishna and Keshav N. Shrivastava, "Penetration Depth in a
Mixed Wave Superconductor." Presented at the Int. Conf. of Strongly
Correlated Electron Systems (SCES '96), Zurich, Switzerland, Aug. 19-22,
1996; to be published in Physica B. School of Physics, University of
Hyderabad, P.O. Central University, Hyderabad 500 046, INDIA. K. N.
Shrivastava's telephone +91 40-258500 or -258512; telefax +91 40-258120
or-258145; e-mail knssp@uohyd.ernet.in.
Kazuhiko Kuroki, Hideo Aoki, Takashi Hotta, and Yasutami Takada,
"Detection of Pairing Correlation in the Two-Dimensional Hubbard Model."
Report #ISSN 0082-4798; submitted to Phys. Rev. Lett. Department of
Physics, University of Tokyo, Hongo, Tokyo 113, JAPAN. 74.20.-z;
71.10.Fd.
C. C. Lam, L. W. Shao, X. Jin, W. M. Chen, H. Q. Xiong, J. Feng, S. R.
Qi, and K. C. Hung, "Positron Annihilation in the Hydrogenated Granular
Superconductor of YBa2Cu3O7-d." To be published in Physica C (in
press). Department of Physics and Materials Science, City University of
Hong Kong, HONG KONG; telefax +852 2788 7830.
S. T. Lees, I. Gameson, M. O. Jones, P. P. Edwards, C. Greaves, F.
Wellhofer, P. Woodall, I. Langford, and M. Slaski, "Induction of
Superconductivity in Pulsed Laser Ablated La2CuO4 Thin Films by PostDeposition Fluorination." To be published in Physica C (in press).
Contact P. P. Edwards, School of Chemistry, University of Birmingham,
Edgbaston, Birmingham B15 2TT, UNITED KINGDOM; telefax +44 121 414 4442.
Q. Li, G. N. Riley, Jr., R. D. Parrella, S. Fleshler, M. W. Rupich, W.
L. Carter, J. O. Willis, J. Y. Coulter, J. F. Bingert, V. K. Sikka, J.
A. Parrell, and D. C. Larbalestier, "Progress in Superconducting
Performance of Rolled Multifilamentary Bi-2223 HTS Composite
Conductors." Presented at the Appl. Supercond. Conf. (ASC'96),
Pittsburgh, PA, Aug. 25-30, 1996. American Superconductor Corporation,
Two Technology Drive, Westborough, MA 01581; telephone (508) 836-4200;
telefax (508) 836-4248; e-mail amcgee@asc.mhs.compuserve.com.
Quang Li, Y. N. Tsay, Y. Zhu, M. Suenaga, G. D. Gu, and N. Koshizuka,
"Electromagnetic Properties of High Angle [001] Twist Grain Boundaries
in Bi2Sr2CaCu2O8+d Bicrystals." Brookhaven National Laboratory, Upton,
NY 11973.
Y. P. Li, J. R. Liu, W. K. Chu, J. A. Kilner, and T. J. Tate, "Ion Beam
Techniques Applied to the Study of Oxygen Diffusion in YBa2Cu3O7-d
Films." Preprint #96:111; submitted to Proc. of the 14th Int. Conf. on
Application of Accelerators in Research and Industry, Denton, TX, Nov.
6-9, 1996. Texas Center for Superconductivity, University of Houston,
Houston, TX 77204-5932; telephone (713) 743-8200; telefax (713) 7438201; e-mail preprints@www.tcs.uh.edu.
Mikael Lindgren, Marc Currie, Carlo Williams, Thomas Y. Hsiang, Philippe
M. Fauchet, Roman Sobolewski, Steven H. Moffat, Robert A. Hughes, John
S. Preston, and Frank A. Hegmann, "Ultrafast Photoresponse and Pulse
Propagation in High-Tc Superconducting Y-Ba-Cu-O Thin-Film Devices."
Submitted to J. Selected Topics in Quantum Electronics. Department of
Electrical Engineering and Laboratory for Laser Energetics, University
of Rochester, Rochester, NY 14627; e-mail lindgren@ee.rochester.edu.
74.40.+k; 85.60.Gz.
Lydia S. Lingam and Keshav N. Shrivastava, "Normal State Resistivity of
Bi2Sr2CaCu2O8+x." To be published in Physica B (in press). Contact
Keshav N. Shrivastava, School of Physics, University of Hyderabad, P.O.
Central University, Hyderabad 500 046, INDIA. K. N. Shrivastava's
telephone +91 40-258500 or -258512; telefax +91 40-258120 or -258145; email knssp@uohyd.ernet.in.
Lydia S. Lingam and Keshav N. Shrivastava, "The Normal State Resistivity
of a Superconducting Film in an External Static Electric Field in
YBa2Cu3O7-x. " School of Physics, University of Hyderabad, P.O. Central
University, Hyderabad 500 046, INDIA. K. N. Shrivastava's telephone +91
40-258500 or -258512; telefax +91 40-258120 or -258145; e-mail
knssp@uohyd.ernet.in.
S. M. Loureiro, C. Stott, L. Philip, M. F. Gorius, M. Perroux, S. Le
Floch, J. J. Capponi, D. Xenikos, P. Toulemonde, and J. L. Tholence,
"The Importance of the Precursor in High-Pressure Synthesis of Hg-Based
Superconductors." To be published in Physica C. Laboratoire de
Cristallographie, CNRS, BP 166, F-38042 Grenoble Cedex 09, FRANCE;
telephone +33 76 88 78 00; telefax +33 76 88 10 38; e-mail
loureiro@labs.polycnrs-gre.fr. Key words: BaCaCuO, HgBaCaCuO,
synthesis, superconductivity.
H. M. Luo, B. Qu, Z. Y. Chen, Y. T. Qian, and L. Yang, "A New Family of
Pb-Based 1222 Cuprates (Pb,Mg)(Sr,R)2(R',Ce)2Cu2Oy (R,R': Rare-Earth
Element)." To be published in Physica C (in press). Department of
Applied Chemistry, University of Science and Technology of China, Hefei,
Anhui 230026, PEOPLE'S REPUBLIC OF CHINA.
H. M. Luo, B. Qu, Z. Y. Chen, Y. T. Qian, and W. C. Yu, "Synthesis and
Superconductivity of (Pb0.5Cd0.5)(Sr0.9R0.1)2(R'0.7Ce0.3)2Cu2Oy." To be
published in Physica C (in press). Department of Applied Chemistry,
University of Science and Technology of China, Hefei, Anhui 230026,
PEOPLE'S REPUBLIC OF CHINA.
LUO Hongmei, CHEN Zuyao, and LI Rukang, "New Cuprates with the 1222
Structure: (Ce,M)Sr2(Gd,Ce)2Cu2Oy (M=Zn,Ni)." To be published in
Physica C. Contact LI Rukang, Department of Applied Chemistry,
University of Science and Technology of China, Hefei, Anhui 230026,
PEOPLE'S REPUBLIC OF CHINA.
M. D. Marcos and J. P. Attfield, "Crystal Structure of
Tl0.5Pb0.5Sr2Ca2Cu3O9 at 300 K and Around Tc (118 K)." To be published
in Physica C (in press). Contact J. P. Attfield, Interdisciplinary
Research Centre in Superconductivity, Madingley Road, Cambridge CB3 0HE,
UNITED KINGDOM; telefax +44 1223 336362; e-mail jpa14@uk.ac.cam. Key
words: crystal structure, powder x-ray diffraction, powder neutron
diffraction.
K. R. Marken, W. Dai, L. Cowey, S. Ting, and S. Hong, "Progress in
BSCCO-2212/Silver Composite Tape Conductors." Presented at the Appl.
Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30, 1996; submitted
to IEEE Trans. Appl. Supercond. Superconducting Technology, Oxford
Instruments, Inc., Carteret, NJ 07008.
F. Marsiglio, "Evaluation of the BCS Approximation for the Attractive
Hubbard Model in One Dimension." Submitted to Phys. Rev. B. Neutron &
Condensed Matter Science, AECL, Chalk River Laboratories, Chalk River,
Ontario K0J 1J0, CANADA.
John H. Miller, Jr., Zhongji Zou, Hsiao-Mei Cho, Jiarui Liu, Zong-Shuang
Zheng, and Wei-Kan Chu, "Phase Sensitive Measurements of the Pairing
State Symmetries of Cuprate Superconductors Using Tricrystal
Microbridges." Preprint No. 96:099; presented at the Int. Conf. on
Physics and Chemistry of Molecular and Oxide Superconductors (MOS'96),
Karlsruhe, Germany, Aug 2-6, 1996; to be published in J. Low Temp. Phys.
Department of Physics and Texas Center for Superconductivity, University
of Houston, 4800 Calhoun Road, Houston, TX 77204-5932; telephone (713)
743-8200; telefax (713) 743-8201; e-mail preprints@www.tcs.uh.edu.
74.50.+r; 74.72.Bk; 74.76.Bz; 85.25.Cp.
Guenter Mueller, Benedikt Aschermann, Heinz Chaloupka, Wolfgang Diete,
Markus Getta, Bernd Gurzinski, Matthias Hein, Michael Jeck, Thomas
Kaiser, Sergej Kolesov, Helmut Piel, Hardy Schlick, and Rainer
Theisejans, "Double-Sided YBa2Cu3O7-d Films for Planar High-Power
Filters." Presented at the Appl. Supercond. Conf. (ASC'96), Pittsburgh,
PA, Aug. 25-30, 1996; to be published in IEEE Trans. Appl. Supercond.
Contact Thomas Kaiser, Department of Physics, University of Wuppertal,
Gauss Str. 20, D-42097 Wuppertal, GERMANY; e-mail
kaiser@wpos4.physik.uni-wuppertal.de.
J. Muenzel, H. P. Geserich, and Th. Wolf, "Localization of Charge
Carriers in the c Axis Electronic Transport of YBa2Cu3Ox." To be
published in Physica C (in press). Institut fuer Angewandte Physik,
Universitaet Karlsruhe, D-76128 Karlsruhe, GERMANY; telefax +49 721 608
3417. Key words: far-infrared spectra, anisotropic superconductor,
normal-state properties, c-axis conductivity.
R. M. Noack, S. R. White, and D. J. Scalapino, "The Ground State of the
Two-Leg Hubbard Ladder: A Density-Matrix Renormalization Group Study."
To be published in Physica C (in press). Institut fuer Theoretische
Physik, Universitaet Wuerzburg, Am Hubland, 97074 Wuerzburg, GERMANY;
telefax +49 931 888 5141; e-mail reinhard@physik.uni-wuerzburg.de.
71.20.-b; 75.10.Lp; 75.40.Gb.
G. Pasquini, P. Levy, L. Civale, G. Nieva, and H. Lanza, "Linear
Response in the ac Susceptibility of Vortices in YBa2Cu3O7 Crystals with
Columnar Defects." To be published in Physica C. Departamento de
Fisica, CNEA, Av. del Libertador 8250, 1429 Buenos Aires, ARGENTINA;
telephone +54 1 754 7100; telefax +54 1 754 7121; e-mail
pasquini@tandar.cnea.edu.ar. Key words: columnar defects, ac
susceptibility, Campbell penetration depth.
A. Pfuch, F. Schmidl, A. Wiese, L. Doerrer, U. Huebner, and P. Seidel,
"Several Kinds of Josephson Junctions Based on BSCCO-2212 and TBCCO-2212
Thin Films." Presented at the Low Temp. Eng. & Cryo. Conf. (LTEC '96);
to be published in Cryogenics. Institut fuer Festkoerperphysik,
Institut fuer Angewandte Physik, Friedrich-Schiller-Universitaet Jena,
Max-Wien-Platz 1, D-07743 Jena, GERMANY; telephone +49 3641 6 35730;
telefax +49 3641 6 35681; P. Siedel's e-mail seidel@ifk.uni-jena.de.
Key words: bicrystalline and biepitaxial BSCCO-2212 Josephson
junctions, dc-SQUIDS, thin-film intrinsic Josephson junctions.
J. Pivarc, S. Beuven, P. Seidel, M. Darula, and S. Benacka, "Theoretical
and Experimental Investigation of Phase Coherence in Shorted 2D Arrays
of High-Tc Josephson Junctions." Submitted to J. Low Temp. Phys. (Proc.
WSS '96, Smolenice, Slovak Republic, Aug. 4-7, 1996). Department of
Solid State Physics, Comenius University, SK-842 15 Bratislava,
SLOVAKIA; P. Seidel's telephone at Friedrich-Schiller-Universitaet Jena,
Germany +49 3641-635685 or -635681; telefax +49 3641-635681; e-mail
seidel@ifk.uni-jena.de.
G. Plesch, F. Hanic, S. Buchta, A. Rosova, B. Czyzak, B. Andrzejewski,
and J. Stankowski, "Variation of the Microstructure and Flux Penetration
in YBa2-xSrxCu3Oy Solid Solutions Prepared by Melt Processing." To be
published in Supercond. Sci. & Technol. Department of Inorganic
Chemistry, Faculty of Natural Sciences, Comenius University, 842 15
Bratislava, SLOVAKIA; telephone +42 7 796-326 or -273; telefax +42 7 729
064; e-mail plesch@fns.uniba.sk. 74.72.Bk.
W. Prellier, A. Tebano, J. L. Allen, J. F. Hamet, B. Mercey, M. Hervieu,
and B. Raveau, "Ba2-xSrxCuO2CO3: A Series of Oxycarbonate Thin Films
Grown by Pulsed Laser Deposition on NdGaO3 Substrates." To be published
in Chem. Mater. Laboratoire CRISMAT, CNRS, URA 1318, ISMRA/Universite
de Caen, Boulevard du Marechal Juin, F-14050 Caen Cedex, FRANCE;
telephone +33 2 31-452607; telefax +33 2 31-951600; e-mail
films@crcrisu.ismra.fr.
K. Sauv, J. Conard, M. Nicolas-Francillon, and F. Bouree, "Resistivity
and Local Susceptibility by [7]^Li NMR in YBa2Cu3-xO7+-dLix." To be
published in Physica C (in press). Contact M. Nicolas-Francillon,
Laboratoire de Physique du Solide CNRS-ESPCI, 10 rue Vauquelin, F-75231
Paris Cedex 05, FRANCE; telefax +33 1 40 79 44 25.
J. M. Seuntjens and G. Snitchler, "Practical High Temperature
Superconductor Composites for High Energy Physics Applications."
Presented at the Appl. Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug.
25-30, 1996. American Superconductor Corporation, Two Technology Drive,
Westborough, MA 01581; e-mail amcgee@asc.mhs.compuserve.com.
SHI Da-Ning and LI Zheng-Zhong, "The Effect of Nonmagnetic Doping on
High-Tc Superconductivity." To be published in Physica C (in press).
College of Science, Nanjing University of Aeronautics and Astronautics,
Nanjing, PEOPLE'S REPUBLIC OF CHINA.
G. Snitchler, J. Campbell, D. Aized, S. Fleshler, S. Kalsi, and R.
Schwall, "Long Length Calorimetric Measurement of ac Losses of Bi-2223
with External Field Oriented Perpendicular to the Tape Width."
Presented at the Appl. Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug.
25-30, 1996. American Superconductor Corporation, Two Technology Drive,
Westborough, MA 01581; e-mail amcgee@asc.mhs.compuserve.com.
H. Srikanth, Balam A. Willemsen, T. Jacobs, S. Sridhar, A. Erb, E.
Walker, and R. Fluekiger, "New Features in the Microwave Response of
YBa2Cu3O6.95 Crystals: Evidence for a Multi-Component Order Parameter."
Submitted to Phys. Rev. Lett. Department of Physics, Northeastern
University, 360 Huntington Avenue, Boston, MA 02115; telephone (617)
373-2930; telefax (617) 373-2943; e-mail srinivas@neu.edu; web site
http://sagar.physics.neu.edu/preprints
; preprint also available at condmat@xxx.lanl.gov (#9610032). 74.25.Nf; 74.72.-h; 74.72.Bk.
G. P. Srivastava and Mohan V. Jacob, "Calculation of Nonlinear Surface
Resistance Using Modified Bean's Model." Department of Electronic
Science, University of Delhi, South Campus, New Delhi 110 021, INDIA.
J. J. Sun, L. Z. Zheng, B. R. Zhao, B. Xu, J. W. Li, B. Yin, F. Wu, S.
L. Jia, L. Li, and Z. X. Zhao, "Thermally Activated Flux Dissipation in
c-Axis-Oriented YBa2Cu3O7-d Ultrathin Films." To be published in
Physica C, (in press). National Laboratory for Superconductivity,
Institute of Physics, Chinese Academy of Sciences, Beijing 100080,
PEOPLE'S REPUBLIC OF CHINA; telefax +86 1 256 2605. Key words:
resistive transition, flux lattice, ultrathin film, YBa2Cu3O7-d.
Louis Taillefer, Brett Ellman, Benoit Lussier, and Mario Poirier, "On
the Gap Structure of UPt3: Phases A and B. Presented at the Int. Conf.
of Strongly Correlated Electron Systems (SCES '96), Zurich, Switzerland,
Aug. 19-22, 1996; to be published in Physica B. Department of Physics,
McGill University, 3600 University Street, Montreal, Quebec H3A 2T8,
CANADA; telephone (514) 398-6476; telefax (514) 398-6526; e-mail
louis@physics.mcgill.ca. Key words: heavy-fermion superconductivity,
UPt3, thermal conductivity, ultrasound attenuation. 74.70.Tx; 74.25.Fy;
74.25.Ld.
Yasutami Takada, "Explanation of the Anomalous Isotope Effect in
Superconducting Alkali-Metal-Doped Fullerenes." Report #ISSN 0082-4798;
to be published in J. Phys. Soc. Jpn., Vol. 65, No. 10 (1996).
Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi,
Minato-ku, Tokyo 106, JAPAN. Key words: fullerene, superconductivity,
isotope effect, phonon mechanism, electronic polarization mechanism.
T. Tatsuki, T. Tamura, Y. Moriwaki, X.-J. Wu, S. Adachi, and K. Tanabe,
"New Oxychlorides, T*-Type CaRCuO3Cl (R=Y,Ho and Er), Prepared under
High Pressure." To be published in Physica C (in press).
Superconductivity Research Laboratory, International Superconductivity
Technology Center, 10-13 Shinonome, 1-Chome, Koto-ku, Tokyo 135, JAPAN;
telefax +81 3 3536 5714.
M. Tetenbaum, M. Hash, B. S. Tani, and V. A. Maroni, "Oxygen
Stoichiometry, Phase Stability, and Thermodynamic Behavior of the LeadDoped and Lead-Free Bi-2212 Systems." To be published in Physica C (in
press). Chemical Technology Division, Argonne National Laboratory, 9700
South Cass Avenue, Argonne, IL 60439; telefax (708) 252-9373.
S. M. Ting, K. R. Marken, Jr., L. Cowey, W. Dai, S. Hong, and S. Nelson,
"Development of Current Leads Using Dip Coated BSCCO-2212 Tape."
Presented at the Appl. Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug.
25-30, 1996; submitted to IEEE Trans. Appl. Supercond. Superconducting
Technology, Oxford Instruments, Inc., Carteret, NJ 07008.
N. Tralshawala, J. R. Claycomb, and J. H. Miller, Jr., "Reduction of
Ambient Magnetic Field Noise for High-Tc SQUID Applications." Preprint
#96:107; submitted to the Proc. of the Appl. Supercond. Conf. (ASC'96),
Pittsburgh, PA, Aug. 25-30, 1996. Texas Center for Superconductivity at
the University of Houston, Houston, TX 77204-5932; telephone (713) 7438200; telefax (713) 743-8201; e-mail preprints @www.tcs.uh.edu.
N. Vasanthamohan and J. P. Singh, "Enhancement of Critical Current
Density and Strain Tolerance in Ag-Sheathed BSCCO (2223) Tapes by
Continuous Silver Reinforcement." Submitted to Supercond. Sci. Tech.
Contact Janice Coble, Argonne National Laboratory, 9700 South Cass
Avenue, Argonne, IL 60439; telefax (708) 252-9595; e-mail
janice_coble@qmgate.anl.gov.
N. V. Vo, H. K. Liu, S. X. Dou, and E. W. Collings, "Advances in the
Fabrication of Multifilamentary Bi(Pb)-2223/Ag Tapes." To be published
in the Proc. of the 16th Int. Cryogenic Engineering Conf. and the Int.
Cryogenic Materials Conf. (ICEC 16/ICMC), Kitakyushu, Japan, May 20-24,
1996. Centre for Superconducting and Electronic Materials, Institute of
Materials Technology and Manufacturing, University of Wollongong,
Northfields Ave., Wollongong, NSW 2522, AUSTRALIA.
J. P. Voccio, B. B. Gamble, C. B. Prum, and H. J. Picard, "125 HP HTS
Motor Field Winding Development." Presented at the Appl. Supercond.
Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30, 1996. American
Superconductor Corporation, Two Technology Drive, Westborough, MA 01581;
telephone (508) 836-4200; telefax (508) 836-4248; e-mail
amcgee@asc.mhs.compuserve.com.
J.-Q. Wang, N. D. Rizzo, D. E. Prober, L. R. Motowidlo, and B. A.
Zeitlin, "Flux Pinning in Multifilamentary Superconducting Wires with
Ferromagnetic Artifical Pinning Centers." Presented at the Appl.
Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug. 25-30, 1996; submitted
to IEEE Trans. on Appl. Supercond. Department of Applied Physics,
Becton Center, Yale University, P.O. Box 208284, New Haven, CT 065208284; telefax (203) 432-4283.
X. L. Wang, J. Horvat, H. K. Liu, and S. X. Dou, "Sprial Growth of
Bi2Sr2CaCu2Oy Single Crystals Using KCl Flux Technique." To be
published in J. Crystal Growth. Center for Superconducting and
Electronic Materials, University of Wollongong, Wollongong, NSW 2522,
AUSTRALIA; telephone +61 42 21-3012 or -3555; telefax +61 42 21-3112; email xlw01@uow.edu.au.
S. Warren, A. G. Thomas, J. Hollingworth, W. R. Flavell, P. L. Wincott,
A. Prime, S. Downes, and Changkang Chen, "Angle-Resolved Photoemission
of CuO (100)." Contact W. R. Flavell, Department of Physics, UMIST,
P.O. Box 88, Manchester M60 1QD, UNITED KINGDOM; telephone +44 161 2004466; telefax +44 161 200-3941 or -3911; e-mail
wendy.flavell@umist.ac.uk.
H. Weyten, G. Fransen, R. Kemps, A. Buekenhoudt, and J. Cornelis,
"Synthesis of YBa2Cu3O7-x Superconducting Thin Films on LaAlO3 by Means
of PAMOCVD." To be published in Physica C (in press). Department of
Materials, Flemish Institute for Technological Research (VITO),
Boeretang 200, B-2400 Mol, BELGIUM.
P. Wochner, X. Z. Xiong, P. C. Chow, and S. C. Moss, "X-ray Study of
Two-Phase Coexistence in a C60 Single Crystal Through the Cubic-Cubic
Phase Transition at 260 K." Preprint #96:101; submitted to Phys. Rev.
B. Texas Center for Superconductivity, University of Houston, Houston,
TX 77204-5932; telephone (713) 743-8200; telefax (713) 743-8201; e-mail
preprints@www.tcs.uh.edu.
L. X. Xiao and S. W. Van Sciver, "Intrinsic Stability of High Tc
Superconducting Tapes Including the Effect of Anisotropic Jc."
Presented at the Appl. Supercond. Conf. (ASC'96), Pittsburgh, PA, Aug.
25-30, 1996. National High Magnetic Field Laboratory, 1800 E. Paul
Dirac Drive, Tallahassee, FL 32310.
Shu Zhang, Michael Karbach, Gerhard Mueller, and Joachim Stolze, "Charge
and Spin Dynamics in the One-Dimensional t-Jz and t-J Models." C. W.
Costello & Associates, Providence, RI 02903.
W. J. Zhu, S. T. Ting, and P. H. Hor, "Synthesis and Characterization of
Ruthenium Pyrochlore Oxides La2-xCdxRu2O7-d." Preprint #96:098;
submitted to J. Solid State Chem. Texas Center for Superconductivity,
University of Houston, Houston, TX 77204-5932; telephone (713) 743-8200;
telefax (713) 743-8201; e-mail preprints@www.tcs.uh.edu. Key words:
pyrochlore oxide, ruthenium, lanthanum, cadmium.
*Nov. 12 - 15, 1996: 41st Annual Conference on Magnetism & Magnetic
Materials, Atlanta Hilton Towers, Atlanta, GA. Sponsored jointly by the
American Institute of Physics and the Magnetics Society of the IEEE.
Conference will include all areas of basic and applied science and
technology related to magnetism. Technical subject categories will
include fundamental properties and cooperative phenomena, transport
properties, computational magnetics and imaging, soft magnetic materials
and applications, hard magnetic materials and applications, artificially
structured materials, other magnetic materials, magnetic recording,
applications, and interdisciplinary topics. Proceedings to be published
in a special issue of J. Appl. Phys. Invited and contributed papers as
well as an exhibition of services, equipment, and materials. For
further information, contact Diane Suiters, Conference Coordinator, 65515th St. N.W., Suite 300, Washington, DC 20005; telephone (202) 6395088; telefax (202) 347-6109; e-mail magnetism@mcimail.com; web site
http://www.aip.org/edops/mmm96prog.html.
*March 17 - 21, 1997: APS March Meeting -- Focused Session on
Industrial Applications of High-Temperature Superconductor Materials,
Kansas City, MO. Sponsored by the APS Forum on Industrial and Applied
Physics. Appropriate topics for this session include the following:
passive microwave devices for cellular and PCS applications;
ferroelectric/HTS tunable microwave devices; junction-based electronics;
magnetic-field sensing with SQUIDs, scanning SQUID magnetometers, and
SQUID-based picovoltmeters; and HTS tapes, cables, and coils. Papers
are solicited. Abstract deadline December 6, 1996. For further
information, contact Eric Moser, USAF Wright Laboratory, Electromagnetic
Materials Division (WL/MLPO), Wright-Patterson AFB, OH 45433; telephone
(513) 255-4474, ext. 3255; telefax (513) 255-4913; e-mail moserek@
ml.wpafb.af.mil. For general information regarding the 1997 March
Meeting, contact APS Meeting Dept., One Physics Eclipse, College Park,
MD 20740-3844; telephone (301) 209-3286; telefax (301) 209-0866; e-mail
meetings@aps.org.
May 4 - 9, 1997: Fullerenes: Chemistry, Physics and New Directions IX,
Montreal, Canada. Sponsored by the Fullerenes Group of the
Electrochemical Society. Symposium provides forum for the presentation
of latest developments on these new allotropes of carbon, including
nanotubes and nanopolyhedra. Part of the 191st meeting of the
Electrochemical Society. Papers are solicited. Topics include
technology & polymers, theory, superconductivity, organic
functionalization, photoexcited states, gas phase/mass spectrometry,
extraction/purification/solubility, diffraction studies,
metallofullerenes, surface/film studies, thermodynamics,
electrochemistry/ESR, solid-state physics, and others. Abstract
deadline, January 1, 1997. Papers to be published. For further
information, contact Karl M. Kadish, Department of Chemistry, University
of Houston, Houston, TX 77204-5641; telephone (713) 743-2740; telefax
(713) 743-2745; e-mail: kkadish@uh.edu or Rodney S. Ruoff, Department of
Physics, Washington University, CB 1105, One Brookings Drive, St. Louis,
MO 63130-4899; telephone (314) 935 8746; telefax (314) 935-6219; e-mail:
ruoff@howdy.wustl.edu. Information also available at the WWW page
http://www.electrochem.org.
*May 4 - 9, 1997: Fourth Symposium on Low Temperature Electronics and
High Temperature Superconductivity, 191st Electrochemical Society
Meeting, Montreal, Canada. Intended to provide a forum for discussion
of latest developments in the field. Will focus on new aspects of
electronic materials, devices, and systems operating at cryogenic
temperatures. Contributed papers are solicited in the following areas:
1) Fundamentals: theoretical limitations and restrictions and
superconducting materials; 2) Devices: semiconductor components,
superconducting devices, SQUIDS, infrared components, optoelectronic
devices, hybrid and monolithic integration, nanostructures and novel
devices, processing, and modeling; 3) Circuits: integrated circuits,
digital and analog circuits, charge-coupled devices and read-out
circuits, low-temperature systems, design considerations, and
superconducting circuits; 4) Systems: packaging, assembly and
interconnections, reliability performance, low-to-room-temperature
interfaces, heat transfer and refrigeration systems, and device and
system testing; and 5) Applications: computer and telecommunications,
space applications, infrared astronomy, instrumentation, low-temperature
measurement systems. Abstract deadline, Nov. 1, 1996. Abstracts and
inquiries should be sent to one of the symposium organizers: C. Claeys,
IMEC, Kapeldreef 75, B-3001 Leuven, Belgium, telephone +32 16-281328,
telefax +32 16-281214, e-mail claeys@imec.be; S. I. Raider, IBM
Corporation, T. J. Watson Research Center, P. O. Box 218, Room 82-111,
Yorktown Heights, NY 10598, telephone (914) 945-3822, telefax (914) 9452018, e-mail raider@watson.ibm.com; M. J. Deen, School of Engineering,
Simon Fraser University, Burnaby, B.C., Canada, V5A 1S6, telephone (604)
291-3248, telefax (604) 291-4951, e-mail jamal@cs.sfu.ca; W. D. Brown,
Department of Electrical Engineering, University of Arkansas, 3220 Bell
Engineering Center, Fayetteville, AR, telephone (501) 575-3009, telefax
(501) 575-7967, e-mail wdb@engr.uark.edu; or R. K. Kirschman, P.O. Box
391716, Mountain View, CA 94039, telephone (415) 962-0200, telefax (415)
962-5763, e-mail randall@infoserv.com. 8/15/96
June 8 - 13, 1997: 1997 IEEE MTT-S International Microwave Symposium,
Denver, CO. Will focus on highly integrated ICs or subsystems that
include RF functions at any frequency. Will include session on
superconducting microwave and millimeter-wave circuits and systems.
Papers are solicited. Abstract deadline, December 2, 1996. For further
information, contact Vijay Nair, Technical Program Chair; telephone
(602) 413-5922; telefax (602) 413-5934; e-mail v.nair@ieee.org. For
latest information, see web page at
http://www.ieee.org/mtt/mtt.html.
June 26 - 28, 1997: 6th International Superconductive Electronics
Conference (ISEC'97), Intercontinental Hotel, Berlin, Germany.
Conference will encompass all aspects of superconductive electronics
including the enabling technologies, devices, circuits, instrumentation,
theory, and applications. Topics will range from very-low-frequency
SQUIDs to ultra-high-speed digital circuits. Of special interest will
be the progress towards commercial products. No parallel sessions.
Oral and poster sessions. Topics will include: physics of
superconductive devices, superconducting device fabrication, process
technology, superconductive digital and analog circuits and devices, new
devices such as superconductive transistors and power devices,
applications and instrumentation, and others. Abstract deadline,
February 15, 1997. For further information, contact ISEC'97 Conference
Secretariat, Dipl. Phys. Silvia Knappe, Physikalisch-Technische
Bundesanstalt, Abbestr. 10-12, D-10587 Berlin, Germany; telefax +49 30
3481-490; e-mail isec97@ptb.de; web site
http://www.lab1033.berlin.ptb.de/10/102/isec97/start.htm.
*June 30 - July 3, 1997: 3rd European Conference on Applied
Superconductivity (EUCAS'97), Veldhoven, The Netherlands. Objective is
to provide an up-to-date and comprehensive overview of research and
development activities in applications of all classes of
superconductors. Conference aims to encourage new cooperation on
European and wider international levels. Will include 4 plenary
sessions, 21 oral sessions, and 4 poster sessions with keynote lecture
at the beginning of each oral session. One plenary session will be
devoted to industrial applicability of superconductivity and industrial
perspective. Program will be broadly divided into small-scale &
electronic applications, and large-scale & power applications. Former
category will include Josephson junctions, SQUIDs, digital applications,
mixers/detectors, passive devices, oscillators, materials aspects
related to superconducting electronics, system aspects, and other
applications. Latter category will include fusion and SMES, detectors
and accelerators, motors, generators, high magnetic fields, power
applications, materials aspects related to large-scale applications,
system aspects, and other applications. For general conference
information, contact Convention Bureau Basics, P.O. Box 217, 7500 AE,
Enschede, The Netherlands; telephone +31 53-4894444; telefax +31 534894442; e-mail a.spierenburg@basics.utwente.nl. For scientific
queries, contact eucas@tn.utwente.nl. Information also available at the
web site
http://eucas.tn.utwente.nl/eucas/intro.htm.
Oct. 20 - 24, 1997: 15th International Conference on Magnet Technology
(MT-15), Beijing, China. Purpose is to survey new techniques and
developments in the fields of both superconducting and conventional
magnets, and their operation and of application. Appropriate topics for
the conference include: magnets for research; industrial applications
of magnets; other application areas (biology, medicine, chemistry,
etc.); materials for magnets (superconductors and their electrodynamics,
structural and insulating materials, etc.); cryogenics; mechanical and
electromagnetic calculation; basic magnet design and computation;
instrumentation; measurement; and testing. Proceedings to be published
in a special issue of IEEE Transaction on Magnets. Abstract deadline,
April 30, 1997. For further information, contact Liangzhen Lin, Chair
of MT-15 Program Committee, Applied Superconductivity Division,
Institute of Electrical Engineering, Chinese Academy of Sciences,
P.O.Box 2703, Beijing 100080, P.R.China; telephone +86 10-6256-1492;
telefax +86 10-6256-0904; e-mail asd@piano.iee.ac.cn.
Information
New Edition of Textbook: Fundamentals of Physics, Fifth Edition, by
David Halliday, Robert Resnick, and Jearl Walker. Contains several
revisions and upgrades. Length of this edition has been reduced by
combining several chapters and pruning contents. Chapters on quantum
mechanics rewritten to modernize the subject and now includes
experimental and theoretical results of the last few years including HTS
materials. In addition, quantum mechanics and relativity is now
introduced in some of the early chapters to lay groundwork for more
thorough treatment later. Publ. 1996; 984 pp.; price $86.95 (cloth);
ISBN 0-47110-5589. Contact John Wiley & Sons, Inc., Distribution
Center, 1 Wiley Drive, Somerset, NJ 08875-1272; telephone (908) 4694400; telefax (908) 302-2300;
URL http://www.wiley.com/
Reference Material: Bibliography of High-Tc SQUIDs (1992-1995) compiled
and edited by Neeraj Khare, S. K. Phull, and Shashi Lekha. Contains an
extensive list of references and complete abstracts on high-Tc SQUIDs.
Includes an introduction to SQUIDs and a summary of developments in the
past few years. For information, contact Neeraj Khare, National
Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi 110012, India;
telephone +91 11 5787161; e-mail npl@sirnetd.ernet.in.
Position Wanted: Ph.D. scientist (superconductivity) seeking
postdoctoral or continuing position. Experience in texture analysis
(neutrons, x-rays, synchrotron, electrons); crystallography; and highpressure synthesis. Contact Daniel Chateigner, Department of Geology &
Geophysics, University of California, Berkeley, CA 94720; telephone
(510) 642-7431; telefax (510) 643-9980; e-mail
chateign@uclink4.berkeley.edu; web site
http://www.lmcp.jussieu.fr/~chateign/daniel.html.
Supr-con Reorganization: As of 1 Oct '96, the supr-con archive at Los
Alamos (supr-con@xxx.lanl.gov) has been subsumed into the cond-mat
archive. Submissions sent to supr-con@xxx.lanl.gov will now be routed
automatically to the cond-mat archive with the heading Subj-Class:
Superconductivity. Those supr-con subscribers not already subscribed to
cond-mat have been automatically subscribed to just the
Superconductivity subject class of cond-mat. Due to subscriptions under
different addresses, it is possible that some of these will result in
duplicate mailings. Instructions on how to unsubscribe from either
cond-mat or Superconductivity (or how to add other subject classes to
your Superconductivity mailing) can be found at
http://xxx.lanl.gov/new/physsub.html.
High-Tc Update is available on World Wide Web (WWW). The URL for the
HTCU home page is
http://www.iitap.iastate.edu/htcu/htcu.html.
You can extract information on how to subscribe to the newsletter and
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Jan. 1992 to the present issue.
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.
The information contained herein is intended for limited distribution.
Readers are expected to respect the rights of the authors.
Please address all contributions and inquiries to:
Dr. Sreeparna Mitra, A219 Physics, Ames Laboratory/Iowa State
University, Ames, Iowa 50011-3020. Telephone: (515) 294-3877. Telefax:
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MITRA@IASTATE.EDU.
Project Director/Editor: Sreeparna Mitra
Science Editor: John R. Clem
High-Tc Update, Vol. 10, #21, November 1, 1996.
Contents: Preprints begin on page 5; Coming Events begin on page 13;
Resources are on page 15; and FYI is on page 15.
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.
COMING EVENTS
(An * indicates a previously listed event.)
RESOURCES
FYI
(High-Tc Update takes no responsibility for want ads listed in this
section.)
How to Access Electronic Versions of High-Tc Update