Magnetoplasmons excitations in graphene for filling factors $\nu \le 6$

Abstract

In the frame of the Hartree-Fock approximation, the dispersion of magnetoplasmons in Graphene is derived for all types of transitions for filling factors $\nu \le 6$. The optical conductivity components of the magnetoplasmon curves are calculated. It is shown that the electron-electron interactions lead to a strong re-normalization of the apparent Fermi velocity of Graphene which is different for different types of transitions.

arXiv comment15 pages, 7 figures

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• SU(4) symmetry breaking revealed by magneto-optical spectroscopy in epitaxial graphene