Electron-electron interactions in graphene bilayers
arXiv:0805.0305 · doi:10.1209/0295-5075/85/58005
Abstract
We study the effect of electron-electron interactions in the quasiparticle dispersion of a graphene bilayer within the Hartree-Fock-Thomas-Fermi theory by using a four-bands model. We find that the electronic fluid can be described by a non-interacting-like dispersion but with renormalized parameters. We compare our results with recent cyclotron resonance experiments in this system.
4 pages, 5 figures