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z/-z Symmetry of spin-orbit coupling and weak localization in graphene

Authors
  • McCann, Edward
  • Fal'ko, Vladimir I.
Type
Published Article
Publication Date
Nov 22, 2011
Submission Date
Nov 22, 2011
Identifiers
DOI: 10.1103/PhysRevLett.108.166606
Source
arXiv
License
Yellow
External links

Abstract

We show that the influence of spin-orbit (SO) coupling on the weak localization effect for electrons in graphene depends on the lack or presence of z/-z symmetry in the system. While for z/-z asymmetric SO coupling, disordered graphene should display a weak anti-localization behavior at lowest temperature, z/-z symmetric coupling leads to an effective saturation of decoherence time which can be partially lifted by an in-plane magnetic field, thus, tending to restore the weak localization effect.

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