Magnetocapacitance of a graphene monolayer

Details Magnetocapacitance of a graphene monolayer Magnetocapacitance of a graphene monolayer

2008-08-29

arxiv.org/abs/0808.4120v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Withdrawn due to some changes in other paper; the paper has been withdrawn due to further changes in the manuscript

Scientific paper

We present a theoretical study of magnetocapacitance in a graphene monolayer at finite temperature taking into account the effects of disorder. The density of states (DOS) and magnetocapacitance found for graphene are compared to those found in standard two dimensional electron gas (2DEG) systems. The magnetic oscillations in DOS and magnetocapacitance are found to be enhanced and much more robust with respect to temperature damping in monolayer graphene in comparison with a 2DEG. Furthermore, we find that there is a $\pi$ phase shift between magnetic oscillations in the two systems which can be attributed to Dirac electrons in graphene acquiring a Berry's phase as they traverse a closed path in a magnetic field.

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