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arXiv · 0704.2611

Coulomb drag as a measure of trigonal warping in doped graphene

B. N. Narozhny
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Abstract

I suggest to use the effect of Coulomb drag between two closely positioned graphite monolayers (graphene sheets) for experimental measurement of the strength of weak non-linearities of the spectrum in graphene. I consider trigonal warping as a representative mechanism responsible for the drag effect. Since graphene is relatively defect-free, I evaluate the drag conductivity in the ballistic regime and find that it is proportional to the fourth power of the warping strength.

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B. N. Narozhny. 2007-04-19. Coulomb drag as a measure of trigonal warping in doped graphene. https://doi.org/10.1103/physrevb.76.153409

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