Magneto-phonon resonance of shear modes of bilayer graphene

ORAL

Abstract

We describe the frequency renormalization of the recently observed shear phonon mode of bilayer graphene due to electron-phonon coupling. In presence of a relatively strong magnetic field resonances with electronic inter-Landau level transitions are possible. When the resonance condition is staisfied a fine structure of the Raman line corresponding to the shear mode arises which is linear in electron-phonon coupling constant. This effect can be used to measure the strength of the electron-phonon coupling for the shear mode.

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Authors

  • Kostyantyn Kechedzhi

    • Department of Physics and Astronomy, Rutgers The State University of New Jersey, 136 frelinghuysen rd, Piscataway, 08854 NJ, USA

  • Mark Olivier Goerbig

    • Laboratorie de Physique des Solides, Universite Parsi-Sud, CNRS UMR 8502, F-91405 Orsay, France

  • Jean-Noel Fuchs

    • Laboratorie de Physique des Solides, Universite Parsi-Sud, CNRS UMR 8502, F-91405 Orsay, France

  • Vladimir Fal'ko

    • Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK