Theory of spin hall effect: Extension of the drude model

被引：64

作者：

Chudnovsky, Eugene M. ^{[1
]}

机构：

[1] CUNY Herbert H Lehman Coll, Dept Phys & Astron, Bronx, NY 10468 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.99.206601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An extension of the Drude model is proposed that accounts for the spin and spin-orbit interaction of charge carriers. Spin currents appear due to the combined action of the external electric field, crystal field, and scattering of charge carriers. The expression for the spin Hall conductivity is derived for metals and semiconductors that is independent of the scattering mechanism. In cubic metals, the spin Hall conductivity sigma(s) and charge conductivity sigma(c) are related through sigma(s)=[2 pi h/(3mc(2))]sigma(2)(c) with m being the bare electron mass. The theoretically computed value is in agreement with experiment.

引用

页数：4

共 19 条

[1] TOPOLOGICAL QUANTUM EFFECTS FOR NEUTRAL PARTICLES [J].

AHARONOV, Y ;

CASHER, A .

PHYSICAL REVIEW LETTERS, 1984, 53 (04) :319-321

[2]

BJORKEN JD, 1965, QUANTUM MECH

[3]

Drude P, 1900, ANN PHYS-BERLIN, V1, P566

[4]

Drude P., 1900, Ann. Phys, V308, P369, DOI [10.1002/andp.19003081102, DOI 10.1002/ANDP.19003081102]

[5] CURRENT-INDUCED SPIN ORIENTATION OF ELECTRONS IN SEMICONDUCTORS [J].

DYAKONOV, MI ;

PEREL, VI .

PHYSICS LETTERS A, 1971, A 35 (06) :459-&

[6]

DYAKONOV MI, 1971, JETP LETT-USSR, V13, P467

[7]

Engel H. A., ARXIVCONDMAT0603306

[8] Theory of spin hall conductivity in n-doped GaAs -: art. no. 166605 [J].

Engel, HA ;

Halperin, BI ;

Rashba, EI .

PHYSICAL REVIEW LETTERS, 2005, 95 (16)

[9] Spin Hall effect [J].

Hirsch, JE .

PHYSICAL REVIEW LETTERS, 1999, 83 (09) :1834-1837

[10] Overlooked contribution to the Hall effect in ferromagnetic metals [J].

Hirsch, JE .

PHYSICAL REVIEW B, 1999, 60 (21) :14787-14792

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