The Influence of Remote Bands on Exciton Condensation in Double-Layer Graphene
arXiv:1107.4477 · doi:10.1103/PhysRevB.84.155409
Abstract
We examine the influence of remote bands on the tendency toward exciton condensation in a system consisting of two parallel graphene layers with negligible interlayer tunneling. We find that the remote bands can play a crucial supporting role, especially at low carrier densities, and comment on some challenges that arise in attempting quantitative estimates of condensation temperatures.
12 pages, 9 figures