Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2008-01-10
Int. J. Mod. Phys. B 22, 2529-2536 (2008)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 pages, 1 figure
Scientific paper
10.1142/S0217979208039794
We calculate the conductivity of a clean graphene sheet at finite temperatures starting from the tight-binding model. We obtain a finite value for the dc-conductivity at zero temperature. For finite temperature, the spontaneous electron-hole creation, responsible for the finite conductivity at zero temperature, is washed out and the dc-conductivity yields zero. Our results are in agreement with calculations based on the field-theoretical model for graphene.
Peres Nuno. M. R.
Stauber Tobias
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