4.3 Article

Magnetic oscillation of optical phonon in graphene

Journal

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 76, Issue 2, Pages -

Publisher

PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.76.024712

Keywords

two-dimensional graphite; electron-phonon interaction; optical phonon; broadening

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The frequency shift and broadening of long-wavelength optical phonons due to interactions with electrons are calculated in a monolayer graphene in magnetic fields. The broadening is resonantly enhanced and the frequency shift exhibits a rapid change when the phonon energy becomes the energy separation of Landau levels between which optical transitions are allowed.

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