* Reissue of a groundbreaking classic text * Co-authored by Nobel prize winner Sir Nevill Francis Mott and Edward A Davis * Looks at both the experimental and theoretical approaches to non-crystalline materials Since the first edition of this highly successful book the field saw many great developments both in experimental and theoretical studies of electrical properties of non-crystalline solids. It became necessary to rewrite nearly the whole book, while the aims of the second edition remained the same: to set out the theoretical concepts, to test them by comparison with experiment for a wide variety of phenomena, and to apply them to non-crystalline materials. Sir Nevill Mott shared the 1977 Nobel Prize for Physics, awarded for his research work in this field. The reissue of this book as part of the Oxford Classic Texts in the Physical Sciences is a reprint of the second edition which was published in 1979. Table Of Contents 1: Introduction 2: Theory of Electrons in a Non-Crystalline Medium 3: Phonons and Polarons 4: The Fermi Glass and the Anderson Transition 5: Liquid Metals and Semimetals 6: Non-Crystalline Semiconductors 7: Tetrahedrally-Bonded Semiconductors - Amorphous Germanium and Silicon 8: Aresnic and Other Three-Fold Co-ordinated Materials 9: Chalcogenide and Other Glasses 10: Selenium, Tellurium, and their Alloys