Universal scaling of Coulomb drag in graphene layers

Irene D'Amico, S. G. Sharapov

Published 2004-10-29Version 1

We study the Coulomb drag transresistivity between graphene layers employing the finite temperature density response function. We analyze the Coulomb coupling between the two layers and show that a universal scaling behavior, independent of the interlayer distance can be deduced. We argue that this universal behavior may be experimentally observable in a system of two carbon nanotubes of large radius.