Phonon-induced many-body renormalization of the electronic properties of graphene.
نویسندگان
چکیده
We develop a theory for the electron-phonon interaction effects on the electronic properties of graphene. We analytically calculate the electron self-energy, spectral function, and the band velocity renormalization due to phonon-mediated electron-electron interaction, finding that phonon-mediated electron-electron coupling has a large effect on the graphene band structure renormalization. Our analytic theory successfully captures the essential features of the observed graphene electron spectra in the angle-resolved photoemission experiments, predicting a kink at approximately 200 meV below the Fermi level and a reduction of the band velocity by approximately 10-20% at the experimental doping level.
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ورودعنوان ژورنال:
- Physical review letters
دوره 99 23 شماره
صفحات -
تاریخ انتشار 2007