Electron-electron interactions in graphene sheets

Abstract

The effects of the electron-electron interactions in a graphene layer are investigated. It is shown that short range couplings are irrelevant, and scale towards zero at low energies, due to the vanishing of density of states at the Fermi level. Topological disorder enhances the density of states, and can lead to instabilities. In the presence of sufficiently strong repulsive interactions, p-wave superconductivity can emerge.

8 pages

References in corpus (6)

• Marginal Fermi liquid behavior from 2d Coulomb interaction
• Carbon films with a novel sp2 network structure
• Quasiparticle density of states in dirty high-T_c superconductors
• Magnetic-Field-Driven Superconductor-Insulator-Type Transition in Graphite
• Details of disorder matter in 2D d-wave superconductors
• Kinematics of electrons near a Van Hove singularity

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