Electron-electron interactions in graphene bilayers

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

References in corpus (15)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Biased bilayer graphene: semiconductor with a gap tunable by electric field effect
• Gate-induced insulating state in bilayer graphene devices
• Room-Temperature Superfluidity in Graphene Bilayers
• Electronic properties of bilayer and multilayer graphene
• Pseudospin Magnetism in Graphene
• Chirality and Correlations in Graphene
• Cyclotron resonance in bilayer graphene
• Screening, Kohn anomaly, Friedel oscillation, and RKKY interaction in bilayer graphene
• Low density ferromagnetism in biased bilayer graphene
• Density dependent exchange contribution to $\partial \mu /\partial n$ in extrinsic graphene
• Optical properties of graphene: the Fermi liquid approach
• Electronic compressibility of a graphene bilayer
• Wigner crystallization in a single and bilayer graphene

Cited by in corpus (1)

• Fermi Velocity Enhancement in Monolayer and Bilayer Graphene