Density waves and Cooper pairing on the honeycomb lattice

Carsten Honerkamp

doi:10.1103/physrevlett.100.146404

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arXiv · 0711.1259

Density waves and Cooper pairing on the honeycomb lattice

Carsten Honerkamp

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Abstract

Motivated by the surge in research activities on graphene, we investigate instabilities of electrons on the honeycomb lattice, interacting by onsite and nearest-neighbor terms, using a renormalization group scheme. Near half band-filling, critical minimal interaction strengths are required for instabilities toward antiferromagnetic or charge-density wave order. Away from half filling, f-wave triplet pairing and d+id singlet pairing instabilities are found to emerge out of density-wave regimes.

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Carsten Honerkamp. 2007-11-08. Density waves and Cooper pairing on the honeycomb lattice. https://doi.org/10.1103/physrevlett.100.146404

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