Filling-factor-dependent magnetophonon resonance in graphene

M. O. Goerbig, J. N. Fuchs, K. Kechedzhi, Vladimir I. Fal'Ko

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We describe a peculiar fine structure acquired by the in-plane optical phonon at the Γ point in graphene when it is brought into resonance with one of the inter-Landau-level transitions in this material. The effect is most pronounced when this lattice mode (associated with the G band in graphene Raman spectrum) is in resonance with inter-Landau-level transitions 0+, 1 and -,10, at a magnetic field B0 30T. It can be used to measure the strength of the electron-phonon coupling directly, and its filling-factor dependence can be used experimentally to detect circularly polarized lattice vibrations.

    Original languageEnglish
    Article number087402
    JournalPhysical Review Letters
    Volume99
    Issue number8
    DOIs
    Publication statusPublished - 25 Aug 2007

    Research Beacons, Institutes and Platforms

    • National Graphene Institute

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