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Weak localization in graphene.

Fal’ko, V. I. and Kechedzhi, K. and McCann, Edward and Altshuler, B. L. and Suzuura, H. and Ando, T. (2007) Weak localization in graphene. Solid State Communications, 143 (1-2). pp. 33-38. ISSN 0038-1098

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    We review the recently-developed theory of weak localization in monolayer and bilayer graphene. For high-density monolayer graphene and for any-density bilayers, the dominant factor affecting weak localization properties is trigonal warping of graphene bands, which reflects asymmetry of the carrier dispersion with respect to the center of the corresponding valley. The suppression of weak localization by trigonal warping is accompanied by a similar effect caused by random-bond disorder (due to bending of a graphene sheet) and by dislocation/antidislocation pairs. As a result, weak localization in graphene can be observed only in samples with sufficiently strong inter-valley scattering, which is reflected by a characteristic form of negative magnetoresistance in graphene-based structures.

    Item Type: Article
    Journal or Publication Title: Solid State Communications
    Additional Information: The final, definitive version of this article has been published in the Journal, Solid State Communications 143 (1-2), 2007, © ELSEVIER.
    Uncontrolled Keywords: A. Disordered systems ; D. Electronic transport ; D. Quantum localization
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 11372
    Deposited By: Dr Edward McCann
    Deposited On: 14 Aug 2008 09:11
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jun 2016 01:06
    Identification Number:

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