COULOMB GAP IN A 2-DIMENSIONAL ELECTRON-GAS WITH A CLOSE METALLIC ELECTRODE

被引：25

作者：

PIKUS, FG

EFROS, AL

机构：

[1] Department of Physics, University of Utah, Salt Lake City

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.51.16871

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tunneling density of states of a classical two-dimensional electron gas with large external disorder and strong electron-electron interaction is studied by computer modeling and by solving a self-consistent equation. The Coulomb interaction is supposed to be strongly suppressed at large distances by a parallel metallic plane. At low temperatures the Coulomb gap is found to exist even if the metallic plane is at a smaller distance from the electron gas than the electron-electron separation. These results are explained in terms of a self-consistent equation. The tunneling density of states as obtained from computer modeling is compared to recent experimental data by Ashoori et al. For a strong magnetic field our results are in a good agreement with the experiment. © 1995 The American Physical Society.

引用

页码：16871 / 16877

页数：7

共 18 条

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