Zero-differential conductance of two-dimensional electrons in crossed electric and magnetic fields

被引：8

作者：

Bykov, A. A. ^{[1
,2
,3
]}

Byrnes, Sean ^{[1
,4
]}

Dietrich, Scott ^{[1
,4
]}

Vitkalov, Sergey ^{[1
]}

Marchishin, I. V. ^{[1
,3
]}

Dmitriev, D. V. ^{[1
,3
]}

机构：

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

[2] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia

[3] Russian Acad Sci, Rzhanov Inst Semicond Phys, Siberian Branch, Novosibirsk 630090, Russia

[4] CUNY, Grad Ctr, New York, NY USA

来源：

PHYSICAL REVIEW B | 2013年 / 87卷 / 08期

基金：

美国国家科学基金会;

关键词：

HIGH FILLING FACTORS; DOUBLE-QUANTUM-WELL; RESISTANCE; OSCILLATIONS; STATES;

D O I：

10.1103/PhysRevB.87.081409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An electronic state with zero-differential conductance is found in nonlinear response to an electric field E applied to two dimensional Corbino discs of highly mobile carriers placed in quantizing magnetic fields. The state occurs above a critical electric field E > E-th at low temperatures and is accompanied by an abrupt dip in the differential conductance. The proposed model considers a local instability of the electric field E as the origin of the observed phenomenon. Comparison between the observed electronic state and the state with zero differential resistance, occurring in Hall bar geometry, indicates that the nonlinear response of edge states and/or skipping orbits is not essential in the studied samples. The result confirms that quantal heating is the dominant nonlinear mechanism leading to electronic states with both zero differential resistance and conductance. DOI: 10.1103/PhysRevB.87.081409

引用

页数：5

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