Electron-electron interactions in graphene sheets

Details Electron-electron interactions in graphene sheets Electron-electron interactions in graphene sheets

2000-07-21

arxiv.org/abs/cond-mat/0007337v1

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages

Scientific paper

10.1103/PhysRevB.63.134421

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.

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