Dephasing in (Ga,Mn)As nanowires and rings

DOI to cite this document:: 10.5283/epub.1783

Wagner, Konrad ; Neumaier, Daniel ; Wegscheider, Werner ; Weiss, Dieter

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Date of publication of this fulltext: 05 Aug 2009 13:32

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Abstract

To understand quantum mechanical transport in a ferromagnetic semiconductor, the knowledge of basic material properties such as the phase coherence length and corresponding dephasing mechanism are indispensable ingredients. The lack of observable quantum phenomena has prevented experimental access to these quantities so far. Here we report the observations of universal conductance fluctuations in ...