Ebook: Ten Years of Superconductivity: 1980–1990

The unexpected and therefore really amazing discovery of J. G. Bednorz and K. A. R32 Miiller , that certain oxide compounds enter a superconducting state at temperatures above 30 K pushed research on superconductivity into the limelight of science in general in a way that seemed reserved for a while for high-energy or particle physics only. The common interest was then even more aroused when subsequent work rather quickly established that in the same class of compounds (oxides), critical temperatures of superconductivity above R36 the boiling point of nitrogen could be achieved . It might therefore be expected, that this entire review would solely deal with superconductivity at high temperatures, i. e. , above the boiling point of hydrogen. From my point of view, however, any unexpected occurrence of superconductivity is a challenge to scientists interested either in the physics of this phenomenon or in its materials-science aspects. In this respect, the last ten years have been quite revolutionary in the sense that on various occasions, superconductivity was discovered in materials whose physical properties were not obviously favourable for adopting this ground state. This period started with the observation that homogeneous coexistence of superconductivity and magnetic order in the same material was possible. Later it was found that electrons whose effective mass was tremendously enhanced by magnetic interactions, may also form a superconducting state, namely in materials that were subsequently identified as heavy­ electron superconductors.

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The unexpected and therefore really amazing discovery of J.G. Bednorz and K.A. M?ller, that certain oxide compounds enter a superconductivity state at temperatures above 30 K, pushed research on superconductivity into the limelight of science in general in a way that seemed reserved only for high energy or particle physics. It may therefore be expected that this entire review would solely deal with superconductivity at high temperatures, i.e. above the boiling point of hydrogen.
Any unexpected occurrence of superconductivity is, however, a challenge to scientists interested either in the physics of this phenomenon or in its materials science aspects. In this respect, the eighties have been quite revolutionary in the sense that, on various occasions, superconductivity was discovered in materials whose physical properties were not obviously favourable for adopting this ground state.
Therefore, apart from emphasizing the topic of oxide superconductors, this collection of reprints also contains a selection of papers that deal with other subjects, such as coexistence of magnetic order and superconductivity, heavy electron and organic superconductors. This is all the more justified when we consider the fact that various aspects of superconductivity in high T_c oxide compounds are, or might be, connected with features that are also observed in these other materials.
For nonspecialists who might be interested in this collection of reprints the Editor briefly reviews the possibilities for identifying superconductivity and discusses some special features of the superconducting state.

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The unexpected and therefore really amazing discovery of J.G. Bednorz and K.A. M?ller, that certain oxide compounds enter a superconductivity state at temperatures above 30 K, pushed research on superconductivity into the limelight of science in general in a way that seemed reserved only for high energy or particle physics. It may therefore be expected that this entire review would solely deal with superconductivity at high temperatures, i.e. above the boiling point of hydrogen.
Any unexpected occurrence of superconductivity is, however, a challenge to scientists interested either in the physics of this phenomenon or in its materials science aspects. In this respect, the eighties have been quite revolutionary in the sense that, on various occasions, superconductivity was discovered in materials whose physical properties were not obviously favourable for adopting this ground state.
Therefore, apart from emphasizing the topic of oxide superconductors, this collection of reprints also contains a selection of papers that deal with other subjects, such as coexistence of magnetic order and superconductivity, heavy electron and organic superconductors. This is all the more justified when we consider the fact that various aspects of superconductivity in high T_c oxide compounds are, or might be, connected with features that are also observed in these other materials.
For nonspecialists who might be interested in this collection of reprints the Editor briefly reviews the possibilities for identifying superconductivity and discusses some special features of the superconducting state.

Content:
Front Matter....Pages i-47
High superconducting transition temperatures of new rare earth ternary borides....Pages 51-52
Observation of Magnetic-Field-Induced Superconductivity....Pages 53-56
Unusual Properties of Magnetic Superconductors....Pages 57-60
UBe13: An Unconventional Actinide Superconductor....Pages 61-64
Heavy-Fermion Superconductivity: Experimental Status Report....Pages 65-75
Heavy-Electron Superconductivity....Pages 76-80
Heavy-electron superconductors, spin fluctuations, and triplet pairing....Pages 81-84
Symmetry properties of triplet superconductors....Pages 85-88
Superconducting classes in heavy-fermion systems....Pages 89-95
Transport and Thermal Properties of Heavy-Fermion Superconductors: A Unified Picture....Pages 96-117
Specific Heat of UPt3: Evidence for Unconventional Superconductivity....Pages 118-131
Superconductivity in a synthetic organic conductor (TMTSF)2PF6(†)....Pages 132-133
Zero-Pressure Organic Superconductor: Di-(Tetramethyltetraselenafulvalenium)-Perchlorate [(TMTSF)2C104]....Pages 134-143
Superconductivity in a New Family of Organic Conductors....Pages 144-155
Normal-pressure superconductivity in an organic metal (BEDT-TTF)2I3 [bis (ethylene dithiolo) tetrathiofulvalene triiodide]....Pages 156-159
A New Ambient Pressure Organic Superconductor (BEDT-TTF)2Cu(Ncs)2 with Tc above 10 K....Pages 160-163
One-Dimensional Correlations in Organic Superconductors: Magnetism and Superconductivity....Pages 164-167
Organic Conductors and Superconductors in High Magnetic Fields....Pages 168-171
High-Temperature Superconductivity in the BaPb1-xBixO3 System....Pages 172-188
Superconductivity in the BaPb1-xBixO3System....Pages 189-192
Superconductivity Produced by Electron Doping in CuO2-Layered Compounds....Pages 193-196
The Resonating Valence Bond State in La2CuO4and Superconductivity....Pages 197-200
Superconductivity at 93 K in a New Mixed-Phase Y-Ba-Cu-O Compound System at Ambient Pressure....Pages 201-204
Flux Trapping and Superconductive Glass State in La2CuO4–y:Ba....Pages 205-208
SQUID Picovoltometry of YBa2Cu3O7 Single Crystals: Evidence for a Finite-Temperature Phase Transition in the High-Field Vortex State....Pages 209-212
High-Resolution Photoemission Study of the Low-Energy Excitations Reflecting the Superconducting State of Bi-Sr-Ca-Cu-O Single Crystals....Pages 213-217
Superconductivity in the Bi — Sr — Cu — O System....Pages 218-222
Superconductivity in the rare-earth-free TI—Ba—Cu—O system above liquid-nitrogen temperature....Pages 223-253
Superconducting Ground State of Noninteracting Particles Obeying Fractional Statistics....Pages 254-256
Back Matter....Pages 257-258
....Pages 259-266