Intervalley scattering by charged impurities in graphene

Abstract

Intervalley charged-impurity scattering processes are examined. It is found that the scattering probability is enhanced due to the Coulomb interaction with the impurity by the Sommerfield factor $F_Z\propto {\epsilon }^{2\sqrt{1-4g^2}-2}$, where $\epsilon$ is the electron energy and $g$ is the dimensionless constant of the Coulomb interaction.

5 pages, 1 figure