Novel Superconductivity

Front Matter....Pages i-xix
The Rocky Road to High Temperature Superconductivity....Pages 1-8
Electric-Field Modulation of Low Electron Density Thin-Film Superconductors....Pages 9-22
Superconductivity at Contact of Ultrathin Gold Films with Amorphous Germanium....Pages 23-28
Superconductivity in Thin Films of Au/Si by Ion Implantation....Pages 29-37
Test of T c -Predictions Using the Rigid Band Model for Refractory Compounds....Pages 39-46
Superconductivity and Metal Clusters....Pages 47-50
Proximity Effect and Anderson Localization....Pages 51-60
Superconductivity and Disorder in Low Carrier Density La-S....Pages 61-71
Bounds on Superconducting Properties in Eliashberg Theory....Pages 73-81
Disorder-Induced Pair Breaking in Superconductors....Pages 83-84
Flux Lattice Melting in Amorphous Composite IN/INO x Thin Film Superconductors....Pages 85-93
Evidence for Nonphononic Superconductivity in Nb 3 Ge....Pages 95-101
One-Dimensional Correlations in Organic Superconductors : Magnetism and Superconductivity....Pages 103-133
Anisotropic Superconductivity and NMR Relaxation Rate in Organic Superconductors....Pages 135-140
Nuclear Magnetic Relaxation in the Organic Superconductor (TMTSF) 2 C10 4 ....Pages 141-148
Electronic Band Structure and Point-Contact Spectroscopy of the Organic Superconductor β-(BEDT-TTF) 2 I 3 ....Pages 149-157
The Origin of Pairing Interaction in Organic Superconductors....Pages 159-170
Synthesis, Structure and Properties of BEDT-TTF Derivatives....Pages 171-179
On the Possibility of High-Temperature Superconductivity in Organic Materials....Pages 181-185
Heavy-Electron Superconductivity....Pages 187-200
Heavy Electron Superconductivity: From 1K to 90K to ?....Pages 201-214
Critical Fields of Ube 13 Films....Pages 215-221
Kondo Lattices: Possible Mechanism for a Nonphonon Superconductivity, Magnetic-Field-Induced Superconductivity....Pages 223-231
Heavy Fermion Properties and their Relation to Electronic Band Theory....Pages 233-242
Ultrasonic Investigation of Novel Superconducting Systems....Pages 243-252
Phenomenology of Superconductivity and Magnetic Order in Heavy Fermi Liquids and Narrow-Band Metals....Pages 253-264
Proximity Effects between Conventional and Unconventional Superconductors....Pages 265-273
Charge Imbalance Relaxation as a Probe of Anisotropic Heavy Fermion Superconductors....Pages 275-277
Effects of Mass Enhancement on Cooper Pairing in Heavy-Fermion Superconductors....Pages 279-285
Parameters and Exotic Properties of High T c Supercondcutors....Pages 287-291
The Ginzburg Criterion in High Tc Oxides....Pages 293-294
RVB Theory of High T c Superconductivity....Pages 295-299
Electronic Fluctuation and Pairing....Pages 301-308
Non-Phonon Mechanisms of Superconductivity in High T c Superconducting Oxides and Other Materials and their Manifestation....Pages 309-322
Interactions at Interfaces in Layered Systems....Pages 323-331
Excitonic Superconductivity in Layer Structures....Pages 333-339
The Exciton Interaction: Its Possible Role in High Temperature Superconductivity....Pages 341-353
Charge Transfer Resonances and Superconductive Pairing in the New Oxide Metals....Pages 355-365
Bonds, Bands, Charge Transfer Excitations and Superconductivity: YBa 2 Cu 3 O 7−δ vs. YBa 2 Cu 3 O 6 ....Pages 367-372
Possible Role of Oxygen Vacancies and Excitonic Mechanism in High T c Superconducting Oxides....Pages 373-378
An Excitonic Model for the New High Temperature Superconductors....Pages 379-384
Excitonic Theory of High Temperature Oxide Superconductors and the Lack of an Isotope Shift....Pages 385-394
Superexchange Mediated Superconductivity in the Single Band Hubbard Model....Pages 395-399
On Spin-Density Wave State in (La 1−x M x ) 2 Cu0 4−δ ....Pages 401-405
Critical Temperature of Superconductivity Caused by Strong Correlations....Pages 407-410
Superconducting Energy Gap and Pairing Interaction in High T c Oxides....Pages 411-419
Are Spin Density Waves Involved in High-Temperature Superconductivity?....Pages 421-428
The Effect of Structural and Antiferromagnetic Phase Transitions on Superconductivity....Pages 429-433
Effects of Coulomb Interaction on Superconductivity....Pages 435-444
The Importance of Different Two-Dimensional Plasmon Branches for High T c Superconductors....Pages 445-449
Basis and Consequences of the Two-Band Model for High T c Oxide Superconductors....Pages 451-454
Spectra of Plasmons in Superconducting Cuprates....Pages 455-464
The Role of Spatial Separation in Pairing Induced By Electronic Modes....Pages 465-471
Elementary Remarks on High Temperature Superconductors....Pages 473-473
Polaron Effects in High- T c Oxide Superconductors....Pages 475-480
Superconductivity Due to Negative-U Impurities....Pages 481-488
Prediction of Anisotropic Thermopower of La 2−x M x CuO 4 ....Pages 489-491
Band Structure and Electron-Phonon Interaction Calculations for Proposed High-T c Superconducting Oxides: MCUO 3 (M = LA, BA, CS, Y) in the Perovskite Structure....Pages 493-499
Character of States Near the Fermi Level in YBa 2 Cu 3 O 7 ....Pages 501-506
Elementary Theory of the Properties of the Cuprates....Pages 507-514
Mean Field Approach to Double-Occupancy Induced Pairing in Oxide Superconductors....Pages 515-519
Theoretical Model for Oxygen Vacancy Dependence of T c in the YBa 2 Cu 3 O x System (6 ≤ × ≤ 8)....Pages 521-529
Complex Hamiltonians: Common Features of Mechanisms for High-T c and Slow Relaxation....Pages 531-538
Superconductivity Due to Localized Bipolarons in Metal-Oxide Compounds....Pages 539-551
Dilute Fermi Liquid of Heavy Polarons in Copper Oxide Superconductors....Pages 553-562
Molecular Orbital Basis for Superconductivity with Applications to High-T c Materials....Pages 563-576
Suppression of High Temperature Superconductivity by Disorder in the Resonant Valence Bond Model....Pages 577-579
Discovery and Physics of Superconductivity Above 90K....Pages 581-597
Mixed Valence Copper Oxides, High T c Superconductors : Structural Study and Electron Transport Properties....Pages 599-610
Tunneling Spectroscopy of Novel Superconductors....Pages 611-625
Thermodynamic Critical Field of Y 1 Ba 2 Cu 3 O 7 ....Pages 627-632
Microstructure and Superconductivity in High T c Materials....Pages 633-645
Copper Oxidation States, Vacancy Ordering and Their Effect on High Temperature Superconductivity....Pages 647-652
Bulk Superconductivity at 60 K in Oxygen-Deficient Ba 2 YCu 3 O 7-δ , and Oxygen Isotope Effect in La 1.85 Sr 0.15 CuO 4 ....Pages 653-657
Bulk Modulus Anomalies at the Superconducting Transitions of Single-Phase YBa 2 Cu 3 O 7 and La 1.85 Sr .15 CuO 4 ....Pages 659-662
Absence of Resistivity Saturation and its Implications for the High T c Superconductors....Pages 663-677
EPR, Magnetization, and Resistivity Studies in DOPED (4f, 3d Ions) and Undoped R (or Y) Ba 2 Cu 3 O 9−x High Tc Superconductors....Pages 679-687
Upper Critical Field Measurements for RBa 2 Cu 3 O 7 (R = Y,Eu .9 Y .1 ,Sm)....Pages 689-691
Cu-0 Superconductors: Through a Lens, but Darkly....Pages 693-698
Single Crystal Superconducting Y 1 Ba 2 Cu 3 O 7−x Oxide Films by Molecular Beam Epitaxy....Pages 699-703
Chemical Doping and Physical Properties of the New High Temperature Superconducting Perovskites....Pages 705-724
Properties of Oriented Oxide Superconductor Thin Films Prepared by Pulsed Laser Evaporation from High T c Bulk Material....Pages 725-731
Oxygen Isotope Effect in the High Temperature Superconductors YBa 2 Cu 3 O 7−δ and La 1.85 Sr 0.15 CuO 4 , with 18 O Substituted by Diffusion....Pages 733-738
Magnetic Field Dependence of the Specific Heat of Some High-T c Superconductors....Pages 739-743
A Summary of Some Work on High Temperature Superconductors at Brookhaven National Laboratory....Pages 745-745
A Neutron Powder Diffraction Study of Ba 2 YC 3 O 7 ....Pages 746-747
Structural Phase Transformations and High-T c Superconductivity....Pages 748-750
Neutron Scattering Studies of La 2 CuO 4−δ ....Pages 751-752
X-ray Absorption Studies of La 2−x (Ba,Sr) x CuO 4 Superconductors....Pages 753-754
Photoemission Studies of the High T c Superconductor YBa 2 Cu 3 O 9−δ ....Pages 755-756
Muon Spin Relaxation Studies on High-T c Superconductors....Pages 757-758
Inductive Transition of YBa 2 Cu 3 O 7−δ in the 4 MHz Frequency Range....Pages 759-761
Intrinsic Critical Current and Magnetization of YBa 2 Cu 3 O 7 ....Pages 762-763
The Effect of Anisotropy in H c2 on the Breadth of the Resistive Transition of Polycrystalline YBa 2 Cu 3 O 7−x in a Magnetic Field....Pages 764-766
Superconducting Properties and Structural Characterization of High Tc Oxides....Pages 767-769
The Variation of T c with Hole Concentration in La 2−x Sr x CuO 4−δ Superconductors and Comparison with YBa 2 Cu 3 O 7−δ ....Pages 771-779
Anisotropy in Single-Crystal Y 1 Ba 2 Cu 3 O 7−x ....Pages 781-785
Present Status of High T c Oxide Superconductivity Studies at Tohoku University....Pages 787-799
Current Carrying Properties in High T c Y-Ba-Cu-O System....Pages 801-805
Preparation, Structure, and Magnetic Field Studies of High T c Superconductors....Pages 807-815
Magnetic Behavior of YBaCuO....Pages 817-823
A Coupled Structural and Electrical Transition in La 2 CuO 4 Near 30 K....Pages 825-827
A Photoemission Study of High T c Oxides....Pages 829-837
Experiments on Heavy Electron and High T c Oxide Superconductors....Pages 839-853
Electronic States in High Tc Oxide Superconductors....Pages 855-870
Flux Quantum and Tunnel Characteristics of La 2−x Sr x CuO 4 (x=0.05−0.2) and MBa 2 Cu 3 O 7 (M-Lu, Y) Ceramics....Pages 871-873
Effect of Disordering on the Properties of High-Temperature Ceramic Superconductors....Pages 875-881
Anomalous Behavior of the Elastic Characteristics of YBa 2 Cu 3 O 7 Near T c ....Pages 883-888
Point Contact Study of Metal Oxide Superconductor Y-Ba-Cu-O....Pages 889-892
Infrared Reflectivity, Inelastic Light Scattering and Energy Gap in a Y-Ba-Cu-O Superconductors....Pages 893-896
Specific Features of Microwave Absorption of Superconducting Ceramics in a Magnetic Field....Pages 897-900
Low Temperature X-Ray Analysis and Electron Microscopy of a New Family of Superconducting Materials....Pages 901-904
Microwave Response of the Superconducting YBa 2 Cu 3 O 9−x Ceramics....Pages 905-908
Crystal Preparation of (La 1−x M x ) 2 CuO 4−δ (M=Sr and Ba) and Discovery of Magnetic Superconductors Ln-Ba-Cu-O Systems (Ln=Lanthanide Atoms)....Pages 909-914
Optical-Reflectance Study of the Single-Crystal Superconductor (La 1−x Sr x ) 2 CuO 4 ....Pages 915-918
Single Crystal X-Ray Diffraction Study of (La 1−x M x ) 2 CuO 4−δ (M=Sr and Ba), La 2 CuO 4−δ and LnBa 2 Cu 3 O 7−δ (Ln=Y, Dy and Ho) Systems....Pages 919-926
Single Crystal Studies and Electron Tunneling of (La 1−x M x ) 2 CuO 4−δ (M=Ba and Sr)....Pages 927-934
Study of Superconducting Oxides at Westinghouse....Pages 935-949
Study of the Preparation and Properties of Ybacuo-Films....Pages 951-959
Some Physical Properties of High-Temperature Superconductors....Pages 961-967
Resistance Dependence and Thermogravimetric Analysis of the Er 1 Ba 2 Cu 3 O 9-δ Superconductor Above Room Temperature....Pages 969-972
Anomalous Resistive Behavior in Er 1 Ba 2 Cu 3 O 9-δ at 2290 K....Pages 973-976
Structure and the (014)/(005) X-Ray Line Intensity in 1-2-3 Superconductors....Pages 977-980
Measurement of Fluctuation-Enhanced Conductivity Above T c in Y-Ba-Cu-O....Pages 981-982
Grain Decoupling at Low Magnetic Fields in Ceramic YBa 2 Cu 3 O 7-δ ....Pages 983-991
Magnetization of Superconducting Ba(Y, Nd, Sm, Gd, Dy, Er, Yb)CuO Systems....Pages 993-1002
Josephson Effect and Energy Gap Measurements from Nb/YBCO Point Contact Structures....Pages 1003-1009
Evidence of High Energy Excitations in High T C Superconductors....Pages 1011-1016
Structural and Charge-Transfer Description of High-T c Superconductivity in Y 1 Ba 2 Cu 3 O 7-δ ....Pages 1017-1028
Tunneling Spectroscopy of High T c Oxide Superconductors with a Scanning Tunneling Microscope....Pages 1029-1031
Oxygen Ordering and Interfacial Superconductivity at Twin Boundaries in a Landau-Ginzburg Superconductor Oxide Model....Pages 1033-1039
Superconductivity in YBa 2−x Sr x Cu 3 O 7−y and Y 1−x Sr x CuO 3−y ....Pages 1041-1047
Cu Substitution into the La/Y Site in La 1.8 Sr .2 CuO 4 and YBa 2 Cu 3 O 7 : Determination by X-Ray Absorption Spectroscopy....Pages 1049-1060
Hall Effect in YBa 2 Cu 3 O 7−x vs Oxygen Content x: Observation of a Sharp Transition in R H vs. x....Pages 1061-1066
Oxygen Stoichiometry of YBa 2 Cu 3 O 7−x ....Pages 1067-1071
Substitution for Copper in High-T c Oxides....Pages 1073-1082
Superconductivity in Pure La 2 CuO 4 ....Pages 1083-1088
Oxygen-Intercalation Effect upon Tetragonal-LaBa 2 Cu 3−x O y Compound Samples....Pages 1089-1093
Trends and Future: Theory....Pages 1095-1104
Trends and Future — As Seen at the Berkeley Workshop....Pages 1105-1110
Concluding Remarks....Pages 1111-1112
Back Matter....Pages 1113-1134