Selective scattering in a zigzag graphene nanoribbon

Jun Nakabayashi, Susumu Kurihara

    Research output: Contribution to journalArticle

    Abstract

    Electric transport of a zigzag graphene nanoribbon through a step-like potential or a potential barrier is studied by using the recursive Green's function method. The results for a step-like potential show that scattering processes in a zigzag graphene nanoribbon obey a following selection rule: when the number of zigzag chains N is even, electrons in the band m are only scattered into the bands m+2n, where n is an integer. According to this selection rule, a step-like potential blocks the current when the potential height exceeds the incident energy as long as only the low-energy region is treated. Then, replacing a step-like potential with a potential barrier, we also show that it can play the role of a "band-selective filter".

    Original languageEnglish
    Article number022063
    JournalJournal of Physics: Conference Series
    Volume150
    Issue number2
    DOIs
    Publication statusPublished - 2009

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    graphene
    scattering
    recursive functions
    integers
    Green's functions
    filters
    energy
    electrons

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Selective scattering in a zigzag graphene nanoribbon. / Nakabayashi, Jun; Kurihara, Susumu.

    In: Journal of Physics: Conference Series, Vol. 150, No. 2, 022063, 2009.

    Research output: Contribution to journalArticle

    Nakabayashi, Jun ; Kurihara, Susumu. / Selective scattering in a zigzag graphene nanoribbon. In: Journal of Physics: Conference Series. 2009 ; Vol. 150, No. 2.
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