Advances in Superconductivity VI : Proceedings of the 6th International Symposium on Superconductivity (ISS ’93), October 26–29, 1993, Hiroshima Volumes 1 and 2

More than seven years have passed since the dramatic breakthrough in the critical temperature for superconductors. During this period, a host of new materials have been discovered, and efforts have been stepped up in a variety of domains including device and systems applications, commercialization, and basic research on the properties of superconductive materials. Recent progress in areas such as bulk single crystal production, long-scale wire and tape produc­ tion, flywheel and bearing applications, and electronic device applications for thin films indicate that science and technology have been working hand in hand in this field, as has been the case in the research and development of semi­ conductors. This interdisciplinary "resonance" will be certain to lead to further outstanding advances in the years to come. It goes without saying that worldwide information exchange is the key to accelerating progress in superconductivity science and technology. As in previous years, the ISS '93 served as a venue where visions of future develop­ ments were shared in addition to presentations and extensive discussions on the most up-to-date research results. I hope that the Proceedings contained in this volume will be consulted not only as a summary of the current "state of the art" in high-Tc superconductivity but also as a stimulating source of ideas regarding future applications of superconductivity research. Front Matter....Pages I-XXXV Front Matter....Pages 1-1 Business Opportunities for High Temperature Superconducting Wires and Wire Products....Pages 3-8 Single Crystals or Poly-Crystals....Pages 9-15 Electron Tunneling Into YBCO and Its Alloys....Pages 17-22 Real-Time Visualization of Flux Lines....Pages 23-28 Problems in Epitaxial Growth of High-T c Superconductors....Pages 29-36 Status of U.S. Maglev Program....Pages 37-42 Front Matter....Pages 43-43 Collective Mode of Anisotropic Narrow-Band Bloch-Electron Superconductors....Pages 47-50 Nonequilibrium Electrons in High-Temperature Superconductors....Pages 51-54 Tc Dependence vs. Spacing d by Josephson-Junction between CuO 2 Layers....Pages 55-58 Calculations of the Madelung Potentials for YBCO from/into a Database....Pages 59-62 Critical Temperature and Energy Gap in Weak- and Strong- Coupling Superconductors with Singular Density of States....Pages 63-66 On the Ground State Properties of the Spin-Fermion Model of the Copper-Oxide Planes....Pages 67-70 Magnetic Responses of Zero-bias Conductance Peaks by LT-STM....Pages 73-76 Photoemission Study of (Sr,Eu) x NbO 3 ....Pages 77-80 Photoemission Study of Superconducting Ba 0.6 K 0.4 BiO 3 ....Pages 81-84 Tunneling Measurements of Superconducting Energy Gap and Electron-Phonon Interaction in Ba 1-x K x BiO 3 ....Pages 85-88 Temperature Dependence of Energy Gap Area of Oxide Superconductors....Pages 89-92 Electron Tunneling Studies of High-Tc Superconductors....Pages 93-96 Energy Gap Structure of YBCO Grain Boundary Junction on Si....Pages 97-100 Thermal Expansion of La 2-x Sr x CuO 4 Single Crystals....Pages 103-106 Front Matter....Pages 43-43 Thermopower and Raman Studies of Zn-substituted Y-123....Pages 107-110 Metal-Nonmetal Transition in La 2/3+x TiO 3-δ ( x