Nonlinear magnetotransport in a two-dimensional electron system with anisotropic mobility

被引：3

作者：

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

Goran, A. V. ^{[1
]}

Mayer, W. ^{[3
]}

Vitkalov, S. A. ^{[3
]}

机构：

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

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

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

来源：

JETP LETTERS | 2014年 / 98卷 / 11期

基金：

俄罗斯基础研究基金会; 美国国家科学基金会;

关键词：

TRANSPORT; STATE;

D O I：

10.1134/S0021364013240053

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nonlinear magnetotransport of two-dimensional electrons in modulation-doped GaAs/AlAs heterostructures with anisotropic mobility is investigated. The mobility attains its maximum and minimum values in the and [110] directions, respectively. It is found that, upon an increase in the direct electrical current I (dc) though Hall bars oriented along the [110] direction, the transition of the two-dimensional system to the state with differential resistance r (xx) a parts per thousand 0 in a magnetic field occurs at a lower value of I (dc) and is accompanied by a more pronounced "plunge" into the region of negative r (xx) values as compared to bars oriented along the direction. The results are explained by the impact of mobility on the spectral diffusion of nonequilibrium charge carriers.

引用

页码：717 / 721

页数：5

共 30 条

[1] Dynamical symmetry breaking as the origin of the zero-dc-resistance state in an ac-driven system [J].

Andreev, AV ;

Aleiner, IL ;

Millis, AJ .

PHYSICAL REVIEW LETTERS, 2003, 91 (05)

[2]

Bonch-Bruevich V. L., 1965, SOV PHYS-SOLID STATE, V7, P7

[3] Zero-differential resistance state of two-dimensional electron systems in strong magnetic fields [J].

Bykov, A. A. ;

Zhang, Jing-Qiao ;

Vitkalov, Sergey ;

Kalagin, A. K. ;

Bakarov, A. K. .

PHYSICAL REVIEW LETTERS, 2007, 99 (11)

[4] Microwave-induced magnetic field state with zero conductivity in GaAs/AlAs Corbino disks and hall bars [J].

Bykov, A. A. .

JETP LETTERS, 2008, 87 (10) :551-554

[5] Giant magnetoresistance oscillations induced by microwave radiation and a zero-resistance state in a 2D electron system with a moderate mobility [J].

Bykov, A. A. ;

Bakarov, A. K. ;

Islamov, D. R. ;

Toropov, A. I. .

JETP LETTERS, 2006, 84 (07) :391-394

[6] Zero-differential conductance of two-dimensional electrons in crossed electric and magnetic fields [J].

Bykov, A. A. ;

Byrnes, Sean ;

Dietrich, Scott ;

Vitkalov, Sergey ;

Marchishin, I. V. ;

Dmitriev, D. V. .

PHYSICAL REVIEW B, 2013, 87 (08)

[7] Zener tunneling between Landau orbits in two-dimensional electron Corbino rings [J].

Bykov, A. A. ;

Dmitriev, D. V. ;

Marchishin, I. V. ;

Byrnes, S. ;

Vitkalov, S. A. .

APPLIED PHYSICS LETTERS, 2012, 100 (25)

[8] Microwave induced zero-conductance state in a Corbino geometry two-dimensional electron gas with capacitive contacts [J].

Bykov, A. A. ;

Marchishin, I. V. ;

Goran, A. V. ;

Dmitriev, D. V. .

APPLIED PHYSICS LETTERS, 2010, 97 (08)

[9] Zener Tunneling between Landau Levels in a Double Quantum Well at High Filling Factors [J].

Bykov, A. A. .

JETP LETTERS, 2008, 88 (06) :394-397

[10] Effect of dc and ac excitations on the longitudinal resistance of a two-dimensional electron gas in highly doped GaAs quantum wells [J].

Bykov, AA ;

Zhang, JQ ;

Vitkalov, S ;

Kalagin, AK ;

Bakarov, AK .

PHYSICAL REVIEW B, 2005, 72 (24)

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