Coulomb Screening of 2D Massive Dirac Fermions

Abstract

A model of 2D massive Dirac fermions, interacting with a instantaneous $1/r$ Coulomb interaction, is presented to mimic the physics of gapped graphene. The static polarization function is calculated explicitly to analyze screening effect at the finite temperature and density. Results are compared with the massless case . We also show that various other works can be reproduced within our model in a straightforward and unified manner.

References in corpus (11)

• The electronic properties of graphene
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• Dynamical polarization of graphene at finite doping
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• Anomalous thermodynamics of Coulomb interacting massless Dirac fermions in two spatial dimensions
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Cited by in corpus (3)

• Temperature dependent screened electronic transport in gapped graphene
• Low-temperature linear transport of two-dimensional massive Dirac fermions in silicene: residual conductivity and spin/valley Hall effects
• Effects of electron-impurity scattering on density of states in silicene: impurity bands and band-gap narrowing