Surface optical phonon-assisted cyclotron resonance in graphene on polar substrates

作者: Huynh Vinh Phuc , Le Dinh

DOI: 10.1016/J.MATCHEMPHYS.2015.07.021

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摘要: Abstract We theoretically study the influence of surface optical (SO) phonons on phonon-assisted cyclotron resonance (PACR) effect in a single-layer graphene different polar substrates via both one- and two-photon absorption processes. The process gives significant contribution to magneto-optical coefficient (MOAC) compared one-photon process. shifts peaks are larger for than those nonpolar substrates, where only intrinsic with higher energy contribute. Effects temperature, graphene-substrate separation, magnetic field half-width discussed. Our results provide significantly quantitative picture SO interaction induced substrates.

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