Effects of short-range electron-electron interactions in doped graphene
Effects of short-range electron-electron interactions in doped graphene
We study theoretically the effects of short-range electron-electron interactions on the electronic structure of graphene, in the presence of substitutional impurities. Our computational approach is based on the $\ensuremath{\pi}$ orbital tight-binding model for graphene, with the electron-electron interactions treated self-consistently at the level of the mean-field Hubbard model. The finite …