Symmetry and Spin Dephasing in (110)-Grown Quantum Wells

URN to cite this document:: urn:nbn:de:bvb:355-epub-78263

Bel'kov, V. ; Olbrich, Peter ; Tarasenko, S. ; Schuh, Dieter ; Wegscheider, Werner ; Korn, Tobias ; Schüller, Christian ; Weiss, Dieter ; Prettl, Wilhelm ; Ganichev, Sergey

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Date of publication of this fulltext: 05 Aug 2009 13:57

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Abstract

Symmetry and spin dephasing in (110)-grown GaAs quantum wells (QWs) are investigated applying magnetic field induced photogalvanic effect and time-resolved Kerr rotation. We show that magnetic field induced photogalvanic effect provides a tool to probe the symmetry of (110)-grown quantum wells. The photocurrent is only observed for asymmetric structures but vanishes for symmetric QWs. Applying ...