Organic Superconductivity


Book Description

This book contains papers presented at the International Conference on Organic Superconductivity which was held May 20-24, 1990, at the Stanford Sierra Conference Center, South Lake Tahoe, California. In the twenty years since the First Conference on Organic Superconductivity was held (Hawaii, 1969), there has been remarkable progress in the field. At present, development is accelerating with contributions from many groups in many countries worldwide. The discovery of high Tc superconductivity by G. Bednorz and K. Muller in 1986 and subsequent developments in the ceramic superconductors have had an enormous impact on the field of superconductivity as a whole. This discovery occurred in an area entirely different from that of conventional superconduc tivity, underscoring the importance of the search for and study of novel materials of all kinds. We believe that the organics, with their wide range of structural, chemical, and physical properties, belong in this category of novel materials. This book reflects the efforts of researchers from various disciplines: physicists, chemists, and materials scientists. It addresses the normal and superconducting properties of organic materials, as well as the search for new compounds and new syntheses. We are pleased to note that one of these papers reports on the discovery of a new organic superconductor with a record high Tc in this class. One chapter is devoted to a comparison of organic superconductors and the cuprates, another, to the prospects of discovering other novel conducting or superconducting compounds.




Fermi Surfaces of Low-Dimensional Organic Metals and Superconductors


Book Description

Fermi Surfaces of Low-Dimensional Organic Metals and Superconductors is an introduction to quasi-one- and quasi-two-dimensional organic metals and a review of the current knowledge on the electronic structure of these materials. The principal structural, electronic, and superconducting properties are described and illustrated with many examples. The book introduces the basic theoretical concepts necessary for the understanding of the experimental techniques and reviews in detail recent results in the investigation of the Fermi surface topology. The book is intended both as an introduction and as a reference book for active researchers.







Band Theory and Electronic Properties of Solids


Book Description

This book provides an introduction to band theory and the electronic properties of materials at a level suitable for final-year undergraduates or first-year graduate students. It sets out to provide the vocabulary and quantum-mechanical training necessary to understand the electronic, optical and structural properties of the materials met in science and technology and describes some of the experimental techniques which are used to study band structure today. In order to leave space for recent developments, the Drude model and the introduction of quantum statistics are treated synoptically. However, Bloch's theorem and two tractable limits, a very weak periodic potential and the tight-binding model, are developed rigorously and in three dimensions. Having introduced the ideas of bands, effective masses and holes, semiconductor and metals are treated in some detail, along with the newer ideas of artificial structures such as super-lattices and quantum wells, layered organic substances and oxides. Some recent `hot topics' in research are covered, e.g. the fractional Quantum Hall Effect and nano-devices, which can be understood using the techniques developed in the book. In illustrating examples of e.g. the de Haas-van Alphen effect, the book focuses on recent experimental data, showing that the field is a vibrant and exciting one. References to many recent review articles are provided, so that the student can conduct research into a chosen topic at a deeper level. Several appendices treating topics such as phonons and crystal structure make the book self-contained introduction to the fundamentals of band theory and electronic properties in condensed matter physic today.







Molecular Low Dimensional and Nanostructured Materials for Advanced Applications


Book Description

A presentation and discussion of the most recent advances in the field by the world's leading experts. Topics dealt with include new organic metals with quasi-two-dimensional structure, new organic superconductors, conducting and magnetic hybrid organic-inorganic materials, and highly conducting organic composites. Also reported are very interesting, significant results on optically controllable gratings in liquid crystals and polymers, organic electroluminescent materials, functionalised polymers and photonics, and nonlinear optics. Some new, fascinating fullerene derivatives and organic and metallic clusters are also presented. The chemical design of logic gates and molecular logic machines and the analysis of the roles of defects in clusters are attracting great interest. The properties of semiconducting quantum wires, electronic transport through magnetic molecular nanostructure and electronic transport properties of nanostructures containing both ferromagnetic and superconductors are also presented and discussed.










Iron-based Superconductors


Book Description

From fundamental physics point of view, iron-based superconductors have properties that are more amenable to band structural calculations. This book reviews the progress made in this fascinating field. With contributions from leading experts, the book provides a guide to understanding materials, physical properties, and superconductivity mechanism aspects, and is important for students and beginners to have an overall view of the recent progress in this active field.




The Physics of Organic Superconductors and Conductors


Book Description

This bang up-to-date volume contains the distilled wisdom of some of the world’s leading minds on the subject. Inside, there is a treasure trove of general (tutorial) and topical reviews, written by leading researchers in the area of organic superconductors and conductors. The papers hail from all over the world, as far afield as the USA and Australia. They cover contemporary topics such as unconventional superconductivity, non-Fermi-liquid properties, and the quantum Hall effect.