The origin of electron-hole asymmetry in graphite

Details The origin of electron-hole asymmetry in graphite The origin of electron-hole asymmetry in graphite

2011-11-11

arxiv.org/abs/1111.2676v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

The electron hole asymmetry has been measured in natural graphite using magneto-optical absorption measurements. A splitting is observed for the transitions at both the $K$-point and the $H$-point of the Brillouin zone of graphite where the effect of trigonal warping vanishes. This result is fully consistent with the SWM Hamiltonian providing the free electron kinetic energy terms are taken into account. An identical electron-hole asymmetry should be present in graphene.

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