Spin relaxation times of 2D holes from spin sensitive bleaching of inter-subband absorption

URN to cite this document:: urn:nbn:de:bvb:355-epub-21564
DOI to cite this document:: 10.5283/epub.2156

Schneider, Petra ; Kainz, Josef

; Ganichev, Sergey ; Belkov, Vassilij ; Danilov, Sergey ; Glazov, M. ; Golub, L. ; Rössler, Ulrich ; Wegscheider, Werner ; Weiss, Dieter

; Schuh, Dieter ; Prettl, Wilhelm

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Date of publication of this fulltext: 05 Aug 2009 13:37

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Abstract

We present spin relaxation times of two-dimensional holes obtained by spin sensitive bleaching of the absorption of infrared radiation in p-type GaAs/AlGaAs quantum wells (QWs). It is shown that the saturation of intersubband absorption of circularly polarized radiation is mainly controlled by the spin relaxation time of the holes. The saturation behavior has been determined for different QW ...