Dephasing in (Ga,Mn)As nanowires and rings.

  title={Dephasing in (Ga,Mn)As nanowires and rings.},
  author={K. Wagner and Daniel Neumaier and Matthias Reinwald and Werner Wegscheider and Dieter Weiss},
  journal={Physical review letters},
  volume={97 5},
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 ferromagnetic (Ga,Mn)As. The analysis of the length and temperature dependence of the fluctuations… Expand
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