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arXiv · 1506.05700

Multiple magneto-phonon resonances in graphene

D. M. Basko·P. Leszczynski·C. Faugeras·J. Binder·A. A. L. Nicolet·P. Kossacki·M. Orlita·M. Potemski
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Abstract

Our low-temperature magneto-Raman scattering measurements performed on graphene-like locations on the surface of bulk graphite reveal a new series of magneto-phonon resonances involving both K-point and Gamma-point phonons. In particular, we observe for the first time the resonant splitting of three crossing excitation branches. We give a detailed theoretical analysis of these new resonances. Our results highlight the role of combined excitations and the importance of multi-phonon processes (from both K and Gamma points) for the relaxation of hot carriers in graphene.

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D. M. Basko, P. Leszczynski, C. Faugeras, J. Binder, A. A. L. Nicolet, P. Kossacki, M. Orlita, M. Potemski. 2015-06-18. Multiple magneto-phonon resonances in graphene. https://arxiv.org/abs/1506.05700

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