Shot noise as a probe of spin-polarized transport through single atoms

Andreas Burtzlaff, Alexander Weismann, Mads Brandbyge, Richard Berndt

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    Abstract

    Single atoms on Au(111) surfaces have been contacted with the Au tip of a low temperature scanning tunneling microscope. The shot noise of the current through these contacts has been measured up to frequencies of 120 kHz and Fano factors have been determined to characterize the transport channels. The noise at Fe and Co atoms, the latter displaying a Kondo effect, indicates spin-polarized transport through a single channel. Transport calculations reproduce this observation.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume114
    Issue number1
    Pages (from-to)016602
    Number of pages5
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2015

    Bibliographical note

    © 2015 American Physical Society

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