Spin relaxation in a two-dimensional electron gas in a perpendicular magnetic field

被引：50

作者：

Burkov, AA ^{[1
]}

Balents, L ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 24期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.69.245312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider the problem of spin relaxation in a two-dimensional electron gas (2DEG) in a perpendicular magnetic field. We assume that the spin relaxation is induced by the Rashba spin-orbit (SO) interaction, which appears due to the inversion asymmetry of the confining potential. Our solution is based on a microscopic evaluation of the spin-density response function of the 2DEG with impurities and SO interaction. We derive explicit expressions for the transverse and longitudinal spin-relaxation rates. Our analysis shows, in particular, that the spin-relaxation rates exhibit magnetoquantum oscillations, which are analogous to the Shubnikov-de Haas oscillations of the electrical resistivity. These oscillations can be observed, for example, in time-resolved optical experiments.

引用

页码：245312 / 1

页数：6

共 33 条

[1] THEORY OF QUANTUM TRANSPORT IN A 2-DIMENSIONAL ELECTRON-SYSTEM UNDER MAGNETIC-FIELDS .4. OSCILLATORY CONDUCTIVITY [J].

ANDO, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1974, 37 (05) :1233-1237

[2] THEORY OF QUANTUM TRANSPORT IN A 2-DIMENSIONAL ELECTRON-SYSTEM UNDER MAGNETIC-FIELDS .1. CHARACTERISTICS OF LEVEL BROADENING AND TRANSPORT UNDER STRONG FIELDS [J].

ANDO, T ;

UEMURA, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1974, 36 (04) :959-967

[3] NUCLEAR-SPIN RELAXATION AND SPIN-WAVE COLLECTIVE MODES IN A DISORDERED 2-DIMENSIONAL ELECTRON-GAS [J].

ANTONIOU, D ;

MACDONALD, AH .

PHYSICAL REVIEW B, 1991, 43 (14) :11686-11693

[4] Spin relaxation in quantum hall systems [J].

Apel, W ;

Bychkov, YA .

PHYSICAL REVIEW LETTERS, 1999, 82 (16) :3324-3327

[5] Theory of magneto-oscillation effects in quasi-two-dimensional semiconductor structures [J].

Averkiev, NS ;

Golub, LE ;

Tarasenko, SA ;

Willander, M .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (11) :2517-2530

[6]

Awschalom DD, 2002, NANOSCI TECHNOL, P147

[7] MAGNETOQUANTUM OSCILLATIONS OF THE NUCLEAR-SPIN-LATTICE RELAXATION NEAR A 2-DIMENSIONAL ELECTRON-GAS [J].

BERG, A ;

DOBERS, M ;

GERHARDTS, RR ;

VONKLITZING, K .

PHYSICAL REVIEW LETTERS, 1990, 64 (21) :2563-2566

[8] Magnetic-field dependence of electron spin relaxation in n-type semiconductors -: art. no. 233206 [J].

Bronold, FX ;

Martin, I ;

Saxena, A ;

Smith, DL .

PHYSICAL REVIEW B, 2002, 66 (23) :1-4

[9]

BURKOV AA, CONDMAT0311328

[10] OSCILLATORY EFFECTS AND THE MAGNETIC-SUSCEPTIBILITY OF CARRIERS IN INVERSION-LAYERS [J].

BYCHKOV, YA ;

RASHBA, EI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (33) :6039-6045

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