Hanle spin precession in a two-dimensional electron system

URN to cite this document:: urn:nbn:de:bvb:355-epub-357619
DOI to cite this document:: 10.5283/epub.35761

Kuczmik, Thomas ; Oltscher, Martin ; Bayer, Andreas ; Schuh, Dieter ; Bougeard, Dominique ; Ciorga, Mariusz ; Weiss, Dieter

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Date of publication of this fulltext: 20 Jun 2017 07:18

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Abstract

We investigate the nonlocal Hanle effect in high mobility two-dimensional electron systems using (Ga,Mn)As/GaAs spin Esaki diodes as spin selective contacts. Spin signals in these systems can be strongly affected by dynamic nuclear polarization, which mimics long spin-relaxation times extracted from the measured Hanle curves. Here, we introduce a method which largely suppresses these effects by ...