Decoherence-assisted initialization of a resident hole spin polarization in a p-doped semiconductor quantum well

URN to cite this document:: urn:nbn:de:bvb:355-epub-321562
DOI to cite this document:: 10.5283/epub.32156

Kugler, Michael ; Korzekwa, K. ; Machnikowski, Pawel ; Gradl, Christian ; Furthmeier, Stephan ; Griesbeck, Michael ; Hirmer, Michael ; Schuh, Dieter ; Wegscheider, Werner ; Kuhn, T. ; Schueller, Christian ; Korn, Tobias

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Date of publication of this fulltext: 16 Jul 2015 14:24

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Abstract

We investigate spin dynamics of resident holes in a p-modulation-doped GaAs/Al0.3Ga0.7As single quantum well. Time-resolved Faraday and Kerr rotation, as well as resonant spin amplification, are utilized in our study. We observe that nonresonant or high-power optical pumping leads to a resident hole spin polarization with opposite sign with respect to the optically oriented carriers, while ...