Transition of Graphene on a Substrate to a Semimetallic State
arXiv:0805.4510 · doi:10.1134/S0021364008060064
Abstract
Graphene on a substrate has been shown to exhibit a transition, depending on the substrate material, from a zero-gap semiconductor state to a semimetallic state. The ground-state energy of the electron (hole) gas has been calculated within the random-phase approximation.
6 pages, 4 figures