Metal-non-metal transition in silver chalcogenides
- 1 October 1977
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 36 (4) , 941-958
- https://doi.org/10.1080/14786437708239769
Abstract
The paper reviews the crystallographic, optical, magnetic and transport properties of silver chalcogenides Ag2S and Ag2Se. In the low temperature β-phases, the influence of stoichiometry on the respective magnitude of ionic and electronic conductivities is important. In the disordered high-temperature α-phases, the characteristic feature is the statistic distribution of lattice silver ions. This situation is analysed according to the theory established by Mott (e.g. 1974, and Mott and Davis 1971) for amorphous semiconductors. Owing to the disorder, tails appear both in valence and conduction band, and in α-Ag2Se, the bands overlap.Keywords
This publication has 26 references indexed in Scilit:
- Phonon dispersion and β→α transition in silver iodideSolid State Communications, 1975
- An electron microscopic study of the polymorphic transformation in Ag2Se (I)Physica Status Solidi (a), 1973
- Optical properties of α-Ag2 and β-Ag2S in the infrared and far-infraredSolid State Communications, 1973
- Plasma Reflection in α-Ag2SPhysica Status Solidi (b), 1970
- Observation of Anderson Localization in an Electron GasPhysical Review B, 1969
- Energy Gap inPhysical Review B, 1967
- Susceptibilité magnétique de composés non stœchiométriquesJournal de Chimie Physique et de Physico-Chimie Biologique, 1967
- Wärmeleitfähigkeit, elektrische Leitfähigkeit, Hall-Effekt, Thermospannung und spezifische Wärme von Ag2SeZeitschrift für Naturforschung A, 1962
- Absence of Diffusion in Certain Random LatticesPhysical Review B, 1958
- The contribution to the electrical resistance of metals from collisions between electronsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937