Quantum oscillations of nonlinear response in electron systems with variable density

被引：7

作者：

Dietrich, Scott ^{[1
]}

Byrnes, Sean ^{[1
]}

Vitkalov, Sergey ^{[1
]}

Goran, A. V. ^{[2
]}

Bykov, A. A. ^{[2
]}

机构：

[1] CUNY City Coll, Dept Phys, New York, NY 10031 USA

[2] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 05期

基金：

美国国家科学基金会; 俄罗斯基础研究基金会;

关键词：

TRANSPORT;

D O I：

10.1063/1.4790374

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Quantum oscillations of dissipative resistance are observed in response to electric current applied to a GaAs quantum well with variable two dimensional electron density placed in quantizing magnetic fields. At a fixed magnetic field, the period of the current induced oscillations depends linearly on the electron density. The observed behavior is in accord with a recently proposed model that considers the DC bias-induced spatial re-population of Landau levels as the origin of the resistance oscillations. It indicates the important role of the electron screening in the vicinity of the quantum well, which significantly enhances the nonlinear response. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4790374]

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页数：7

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