Hardening of the Coulomb gap by electronic polarons
- 15 June 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (18) , 10520-10525
- https://doi.org/10.1103/physrevb.37.10520
Abstract
A one-electron density of states for a system of interacting electrons is obtained in the limit of strong localization. The method is based on making the ground state stable with respect to electronic polaron excitations. The resulting density of states presents a relatively small hard gap of the order of a fifth of the Coulomb gap.Keywords
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