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Quantum transport of massless Dirac fermions in graphene | Kentaro Nomura
; A.H. MacDonald
; | Date: |
23 Jun 2006 | Subject: | Mesoscopic Systems and Quantum Hall Effect | Abstract: | Motivated by recent graphene transport experiments, we have undertaken a numerical study of the conductivity of disordered two-dimensional massless Dirac fermions. We find that in the short-range scattering case the minimum conductivity $sigma_{
m min} approxeq (1/pi) e^2/h$, while in the Coulomb scattering case $sigma_{
m min} approxeq e^2/h$. We discuss the relationship between this finding and the experimental properties of graphene sheets, commenting on the possible roles of short-range, Coulombic, and topological-defect scatterers. | Source: | arXiv, cond-mat/0606589 | Services: | Forum | Review | PDF | Favorites |
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