Rashba and Dresselhaus spin splittings in semiconductor quantum wells measured by spin photocurrents

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.12466

Giglberger, Stephan ; Golub, Leonid E. ; Belkov, Vassilij ; Danilov, Sergey ; Schuh, Dieter ; Gerl, Christian ; Rohlfing, Franziska ; Stahl, Joachim ; Wegscheider, Werner ; Weiss, Dieter ; Prettl, Wilhelm ; Ganichev, Sergey

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Veröffentlichungsdatum dieses Volltextes: 25 Jan 2010 13:43

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Zusammenfassung

The spin-galvanic effect and the circular photogalvanic effect induced by terahertz radiation are applied to determine the relative strengths of Rashba and Dresselhaus band spin splitting in (001)-grown GaAs and InAs based two dimensional electron systems. We observed that shifting the δ-doping plane from one side of the quantum well to the other results in a change of sign of the photocurrent ...