Coulomb drag as a measure of trigonal warping in doped graphene
arXiv:0704.2611 · doi:10.1103/PhysRevB.76.153409
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.
4 pages, 1 figure
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- AA stacking, tribological and electronic properties of double-layer graphene with krypton spacer
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- Kinetic theory of Coulomb drag in two monolayers of graphene: from the Dirac point to the Fermi liquid regime
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- Structure, energetic and tribological properties, and possible applications in NEMS of argon-separated double-layer graphene