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Spectral dependence of spin photocurrent and current-induced spin polarization in an InGaAs/InAlAs two-dimensional electron gas

Authors Yang, CL
He, HT
Ding, L
Cui, LJ
Zeng, YP
Wang, JN
Ge, WK
Issue Date 2006
Source Physical review letters , v. 96, (18), 2006, MAY 12, 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
Language English
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