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Detection of large magnetoanisotropy of electron spin dephasing in a high-mobility two-dimensional electron system in a [001] GaAs∕AlxGa1−xAs quantum well

DOI to cite this document:
10.5283/epub.12487
Stich, Dominik ; Jiang, J. H. ; 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 13:50


Abstract

In time-resolved Faraday rotation experiments, we have detected an in-plane anisotropy of the electron spin-dephasing time (SDT) in an n-modulation-doped GaAs∕Al0.3Ga0.7As single quantum well. The SDT was measured with magnetic fields of B⩽1 T, applied in the [110] and [11̅ 0] in-plane crystal directions of the GaAs quantum well. For fields along [11̅ 0], we have found up to a factor of about 2 ...

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