Dependence of spin dephasing on initial spin polarization in a high-mobility two-dimensional electron system

DOI to cite this document:: 10.5283/epub.12499

Stich, Dominik ; Zhou, J. ; Korn, Tobias ; Schulz, Robert ; Schuh, Dieter ; Wegscheider, Werner ; Wu, M. W. ; Schüller, Christian

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Date of publication of this fulltext: 25 Jan 2010 13:58

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Abstract

We have studied the spin dynamics of a high-mobility two-dimensional electron system in a GaAs∕Al0.3Ga0.7As single quantum well by time-resolved Faraday rotation and time-resolved Kerr rotation in dependence on the initial degree of spin polarization, P, of the electrons. By increasing the initial spin polarization from the low-P regime to a significant P of several percent, we find that the spin ...