Two-electron excitations and the low temperature properties of glasses
- 1 December 1976
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 34 (6) , 983-991
- https://doi.org/10.1080/00318087608227723
Abstract
The Holstein molecular-ion model is used to examine in some detail the wave-function describing a two-electron excitation, or double polaron, proposed by Anderson (1975) as a model for a localized state in certain amorphous solids. This wave-function forms the basis of a calculation for the probability of a transition of the double polaron from one localized site to another. The calculation shows that at low temperatures the double polaron is essentially immobile, and contrary to Anderson's suggestion, cannot contribute to the heat capacity below 1 K.Keywords
This publication has 9 references indexed in Scilit:
- States in the Gap in Glassy SemiconductorsPhysical Review Letters, 1975
- States in the gap and recombination in amorphous semiconductorsPhilosophical Magazine, 1975
- Model for the Electronic Structure of Amorphous SemiconductorsPhysical Review Letters, 1975
- Low-Temperature Specific Heat and Thermal Conductivity of Noncrystalline Dielectric SolidsPhysical Review B, 1973
- Tunneling states in amorphous solidsJournal of Low Temperature Physics, 1972
- Anomalous low-temperature thermal properties of glasses and spin glassesPhilosophical Magazine, 1972
- Thermal Conductivity and Specific Heat of Noncrystalline SolidsPhysical Review B, 1971
- Impurity Conduction at Low ConcentrationsPhysical Review B, 1960
- Studies of polaron motionAnnals of Physics, 1959