Increase of spin dephasing times in a 2D electron system with degree of initial spin polarization

DOI to cite this document:: 10.5283/epub.9707

Stich, Dominik ; Korn, Tobias ; Schulz, Robert ; Schuh, Dieter ; Wegscheider, Werner ; Schüller, Christian

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Date of publication of this fulltext: 05 Oct 2009 13:38

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Abstract

We report on time-resolved Faraday/Kerr rotation measurements on a high-mobility 2D electron system. A variable initial spin polarization is created in the sample by a circularly polarized pump pulse, and the spin polarization is tracked by measuring the Faraday/Kerr rotation of a time-delayed probe pulse. By varying the pump intensity, the initial spin polarization is changed from the ...