Coulomb gap in disordered systems: Computer simulation

S. D. Baranovskii; A. L. Efros; B. L. Gelmont; B. I. Shklovskii

doi:10.1088/0022-3719/12/6/015

Coulomb gap in disordered systems: Computer simulation

S. D. Baranovskii
, A. L. Efros
, B. L. Gelmont
, B. I. Shklovskii

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

162 Scopus citations

Abstract

The density of states (DS) of a disordered system with localised electronic states is studied in the vicinity of the Fermi level with the Monte-Carlo computer simulation for the two- and three-dimensional simple model. The minimisation of the total energy with respect to all one-electron transitions is shown to be a good approximation both for the total energy and for the DS. The electron-electron interaction drastically changes the DS in the vicinity of the Fermi level. The DS is shown to have a 'soft' Coulomb gap, and the self-consistent equation fits the results of simulation well. The finite size effect is also studied.

Original language	English (US)
Article number	015
Pages (from-to)	1023-1034
Number of pages	12
Journal	Journal of Physics C: Solid State Physics
Volume	12
Issue number	6
DOIs	https://doi.org/10.1088/0022-3719/12/6/015
State	Published - Dec 1 1979

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abstract = "The density of states (DS) of a disordered system with localised electronic states is studied in the vicinity of the Fermi level with the Monte-Carlo computer simulation for the two- and three-dimensional simple model. The minimisation of the total energy with respect to all one-electron transitions is shown to be a good approximation both for the total energy and for the DS. The electron-electron interaction drastically changes the DS in the vicinity of the Fermi level. The DS is shown to have a 'soft' Coulomb gap, and the self-consistent equation fits the results of simulation well. The finite size effect is also studied.",

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AU - Baranovskii, S. D.

AU - Efros, A. L.

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AU - Shklovskii, B. I.

PY - 1979/12/1

Y1 - 1979/12/1

N2 - The density of states (DS) of a disordered system with localised electronic states is studied in the vicinity of the Fermi level with the Monte-Carlo computer simulation for the two- and three-dimensional simple model. The minimisation of the total energy with respect to all one-electron transitions is shown to be a good approximation both for the total energy and for the DS. The electron-electron interaction drastically changes the DS in the vicinity of the Fermi level. The DS is shown to have a 'soft' Coulomb gap, and the self-consistent equation fits the results of simulation well. The finite size effect is also studied.

AB - The density of states (DS) of a disordered system with localised electronic states is studied in the vicinity of the Fermi level with the Monte-Carlo computer simulation for the two- and three-dimensional simple model. The minimisation of the total energy with respect to all one-electron transitions is shown to be a good approximation both for the total energy and for the DS. The electron-electron interaction drastically changes the DS in the vicinity of the Fermi level. The DS is shown to have a 'soft' Coulomb gap, and the self-consistent equation fits the results of simulation well. The finite size effect is also studied.

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Coulomb gap in disordered systems: Computer simulation

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