Coulomb drag in graphene

Details Coulomb drag in graphene Coulomb drag in graphene

2011-05-16

arxiv.org/abs/1105.3203v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

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

Scientific paper

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.

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