Coulomb drag in graphene

E. H. Hwang; S. Das Sarma

Coulomb drag in graphene

Mesoscale and Nanoscale Physics 2012-01-04 v2 Materials Science

Authors: E. H. Hwang , S. Das Sarma

Abstract

We calculate theoretically the Coulomb drag resistivity for two graphene monolayers spatially separated by a distance " $d$ ". We show that the frictional drag induced by inter-layer electron-electron interaction goes asymptotically as $T^2/n^3$ and $T^2 \ln(n)/n$ in the high-density ( $k_F d \gg 1$ ) and low-density ( $k_F d \ll 1$ ) limits, respectively.

Keywords

graphene electronic transport graphene graphene physics

Cite

@article{arxiv.1105.3203,
  title  = {Coulomb drag in graphene},
  author = {E. H. Hwang and S. Das Sarma},
  journal= {arXiv preprint arXiv:1105.3203},
  year   = {2012}
}

Comments

The longer version of this paper has been published as Phys. Rev. B 84, 245441 (2011), and can be found at arXiv:1111.5022 superseding the current paper

Coulomb drag in graphene

Abstract

Keywords

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