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z -> -z Symmetry of Spin-Orbit Coupling and Weak Localization in Graphene

McCann, Edward and Falko, Vladimir (2012) z -> -z Symmetry of Spin-Orbit Coupling and Weak Localization in Graphene. Physical review letters, 108 (16). -. ISSN 0031-9007

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    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 antilocalization 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.

    Item Type: Article
    Journal or Publication Title: Physical review letters
    Additional Information: © 2012 American Physical Society
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 56981
    Deposited By: ep_importer_pure
    Deposited On: 16 Aug 2012 09:18
    Refereed?: Yes
    Published?: Published
    Last Modified: 09 Apr 2014 23:58
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/56981

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