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Phys Rev Lett. 2007 Feb 16;98(7):076602. Epub 2007 Feb 14.

Quantum transport of massless Dirac fermions.

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Department of Physics, University of Texas at Austin, Austin Texas 78712-1081, USA.


Motivated by recent graphene transport experiments, we undertake a numerical study of the conductivity of disordered two-dimensional massless Dirac fermions. Our results reveal distinct differences between the cases of short-range and Coulomb randomly distributed scatterers. We speculate that this behavior is related to the Boltzmann transport theory prediction of dirty-limit behavior for Coulomb scatterers.

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