Material undergoes the transformation from metal to non-metal or from non-metal to metal when environmental conditions, such as temperature and pressure, or the percentages of constituent components are changed. Such a transition is known as the metal-nonmetal (M-NM) transition. This book, 'The Physics of Metal – Nonmetal Transitions', explores the mechanisms so far discovered which cause the M-NM transition and presents a systematic discussion of them. All the mechanisms are discussed in terms of energy bands, and the band theory is introduced and explained in chapter 2. Once chapters 1 and 2 have been assimilated, the remaining chapters can be read independently of each other if required. The mechanisms discussed therein include the Peierls transition, the Bloch-Wilson transitions – types I and II respectively – the second of which was discovered by the author and her students. Subsequent chapters cover the Anderson transition and the Mott transition, and each chapter includes not only traditional theories, but also updated information about more recent research. The book can be used either as a textbook for undergraduate and postgraduate students of science and technology or as an introductory treatise for researchers in a wide variety of fields.

This text surveys the various aspects of the fundamental problem related to the metallic and non-metallic states of matter, a question physicists have been studying for almost 100 years. The book poses questions and challenges in this area, as well as highlighting present understandings of the topic. Topics covered by the book include physics of dense ionized metal plasmas; metallic hydrogen; pressure-induced metallization; the M-I transition in doped semiconductors; transport studies in doped semiconductors near the metal-insulator transition; new results in old oxides; metal-insulator transition in 3d transition metal perovskite oxides investigated by high-energy spectroscopies; alkali metal-alkali halide melts; hopping conductivity in granular metals revisited; superconductor-insulator transition in cuprates; molecular metals and superconductors; shear induced chemical reactivity; shear, co-ordination and metallization; quantum diffusion and decoherence; the Mott transition; recent results, more and surprises; Mott-Hubbard-Anderson models.

Engineers who need to have a better understanding of chemistry will benefit from this accessible book. It places a stronger emphasis on outcomes assessment, which is the driving force for many of the new features. Each section focuses on the development and assessment of one or two specific objectives. Within each section, a specific objective is included, an anticipatory set to orient the reader, content discussion from established authors, and guided practice problems for relevant objectives. These features are followed by a set of independent practice problems. The expanded Making it Real feature showcases topics of current interest relating to the subject at hand such as chemical forensics and more medical related topics. Numerous worked examples in the text now include Analysis and Synthesis sections, which allow engineers to explore concepts in greater depth, and discuss outside relevance.

Colloque Weyl I was convened in June 1963 at the Catholic University of Lille to commemorate one hundred years of the study of metal-ammonia solutions. This memorable event, which involved a "single-particle excitation", inspired Gerard Lepoutre to assemble an international group of physicists and chemists to discuss the nature of metal-ammonia solutions. Colloque Weyl II, which took 1969, was initiated as a place at Cornell Universtiy, Ithaca, N.Y. in June "cooperative interaction" between M. J. Sienko, J. L. Dye, J. J. Lagowski, G. Lepoutre and J. C. Thompson. That meeting made it clear that Colloque Weyl should be continued in order to promote the fruitful exchange of ideas set in motion at Lille and at Cornell. Colloque Weyl III came into being as the result of a resolution passed at the Cornell meeting, Tel-Aviv University being the suggested site. The Organizing Committee consisted ofE. D. Bergmann, J. Jortner, J. J. Lagowski, G. Lepoutre, U. Schindewolf and M. J. Sienko, reflecting the international and interdisciplinary aspects of the field.