Onsager Relations in a Two-Dimensional Electron Gas with Spin-Orbit Coupling

被引：25
|
作者：
Gorini, C. [1 ,2 ]
Raimondi, R. [3 ,4 ]
Schwab, P. [5 ]
机构：
[1] CNRS, UMR 7504, Inst Phys & Chim Mat Strasbourg, F-67034 Strasbourg 2, France
[2] Univ Strasbourg, F-67034 Strasbourg 2, France
[3] Univ Roma Tre, CNISM, I-00146 Rome, Italy
[4] Univ Roma Tre, Dipartimento Fis E Amaldi, I-00146 Rome, Italy
[5] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.109.246604
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Theory predicts for the two-dimensional electron gas with only a Rashba spin-orbit interaction a vanishing spin Hall conductivity and at the same time a finite inverse spin Hall effect. We show how these seemingly contradictory results are compatible with the Onsager relations: The latter do hold for spin and particle (charge) currents in the two-dimensional electron gas, although (i) their form depends on the experimental setup and (ii) a vanishing bulk spin Hall conductivity does not necessarily imply a vanishing spin Hall effect. We also discuss the situation in which extrinsic spin orbit from impurities is present and the bulk spin Hall conductivity can be different from zero. DOI:10.1103/PhysRevLett.109.246604
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页数：5
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