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.
Interband excitation induced Spin photocurrent in an InGaAs/InAlAs two-dimensional electron gas
2006-09-01
1232643 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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