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At first glance, the articles in this book may appear to have nothing in common. They cover such seemingly disparate subjects as the properties of small metallic clusters and the behavior of superfluid He3, nuclear physics and organic materials, copper oxides and mag netic resonance. Why have they been brought together, particUlarly in our time of narrow spe cialization? In fact, the properties and effects described in this book touch upon one and the same fundamental phenomenon: pair correlation. Introduced in the theory of superconductivity by J. Bardeen, L. Cooper, and J. Schrieffer (BCS), this effect plays a key role in various Fermi systems. The book consists of several sections. The first chapter is concerned with conven tional and high Tc superconductors. The second chapter describes two relatively young fami lies of superconductors: organics and fullerenes. Chapter III addresses the superfluidity of 3 He - The discovery of this phenomenon in 1971 was a big event in physics and last year was acknowledged by a Nobel prize. This book contains the text of the Nobel lecture. Chapters IV and V are devoted to correlations in finite Fermi systems such as small metallic clusters, C 60 anions, and atomic nuclei. The book thus covers a broad range of problems, illuminating the close ties between various areas of physics.
List of contents
I. Superconducting State in Conventional and High Tc Oxides.- Foundations of Superconductivy and Extension to Less-Common Systems.- The Isotope Effect in Superconductors.- Hyperfine Interactions in Metals.- Perovskite Oxides: A Rick and Fascinating Crystal Class Family.- Josephson Effect: Low-Tc vs. High-Tc Superconductors.- The Spectrum of Thermodynamic Fluctuations in Short Coherence Length Superconductors.- Microwave Response of High-Tc Superconductors.- II. Organic Superconductivity. Fullerenes.- Structure and Phase Diagram of Organic Superconductors.- Pairing and Its Mechanism in Organic Superconductors.- Superconductivity in Doped C60 Compounds.- On the Pair Correlations between Electrosolitions.- III. Superfluid He3.- The Pomeranchuk Effect.- Pair Correlations in Superfluid Helium.- IV. Finite Systems. Clusters.- Non-Adiabacity and Pairing in the Finite Systems.- Fullerene Anions and Pairing in Finite Systems.- Quantized Electronic States in Metal Microclusters: Electronic Shells, Structural Effects, and Correlations.- V. Finite Systems. Nuclei.- Role of Pairing Correlations in Cluster Decay Processes.
Summary
Proceedings of an ASI School held in Erice, Italy, June 5-15, 1997
