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Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene

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2012

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Diez, Mathias

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http://nbn-resolving.de/urn:nbn:de:bsz:352-217853
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http://arxiv.org/abs/1202.2067

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We calculate the spin relaxation time of mobile electrons due to spin precession between random impurity scattering (D'yakonov-Perel' mechanism) in electrically gated bilayer graphene analytically and numerically. Due to the trigonal warping of the bandstructure, the spin relaxation time exhibits an interesting non-monotonic behavior as a function of both the Fermi energy and the interlayer bias potential. Our results are in good agreement with recent four-probe measurements of the spin relaxation time in bilayer graphene and indicate the possibility of an electrically-switched spin device.

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530 Physik

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ISO 690DIEZ, Mathias, Guido BURKARD, 2012. Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene
BibTex
@unpublished{Diez2012Biasd-21785,
  year={2012},
  title={Bias-dependent D'yakonov-Perel' spin relaxation in bilayer graphene},
  author={Diez, Mathias and Burkard, Guido}
}
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