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Lévy flights in quantum transport in quasiballistic wires

Leadbeater, M. and Falko, Vladimir and Lambert, Colin J. (1998) Lévy flights in quantum transport in quasiballistic wires. Physical Review Letters, 81 (6). pp. 1274-1277. ISSN 1079-7114

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    Abstract

    Conductance fluctuations, localization, and statistics of Lyapunov exponents are studied numerically in pure metallic wires with rough boundaries (quasiballistic wires). We find that the correlation energy of conductance fluctuations scales anomalously with the sample dimensions, indicating the role of Levy flights. Application of a magnetic field deflects the Levy flights which reduces the localization length. This deflection also breaks geometrical flux cancellation and restores the usual Aharonov-Bohm type magnetoconductance fluctuations.

    Item Type: Article
    Journal or Publication Title: Physical Review Letters
    Additional Information: © 1998 The American Physical Society
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 57066
    Deposited By: ep_importer_pure
    Deposited On: 05 Sep 2012 17:32
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jan 2014 05:30
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/57066

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