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Spectral Dependence of Spin Photocurrent and Current-Induced Spin Polarization in an InGaAs/InAlAs Two-Dimensional Electron Gas

Authors Yang, Chunlei
He, Hongtao
Ding, Lu
Cui, Lijie
Zeng, Yiping
Wang, Jiannong
Ge, Weikun
Issue Date 2006
Source Physical Review Letters , v. 96, (18), May 2006, Article number 186605
Summary The converse effects of spin photocurrent and current induced spin polarization are experimentally demonstrated in a two-dimensional electron gas system with Rashba spin splitting. Their consistency with the strength of the Rashba coupling as measured for the same system from beating of the Shubnikov-de Haas oscillations reveals a unified picture for the spin photocurrent, current-induced spin-polarization, and spin-orbit coupling. In addition, the observed spectral inversion of the spin photocurrent indicates a system with dominating structure inversion asymmetry.
ISSN 0031-9007
Rights © 2006 The American Physical Society
Language English
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