Explanation for the isotropy of the Dirac cone in graphene

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dc.creatorHerbut, Igor F.
dc.date2009-03-03
dc.date2009-05-19
dc.date.accessioned2026-07-07T13:15:48Z
dc.date.available2026-07-07T13:15:48Z
dc.descriptionIt is shown that in the absence of spontaneous symmetry breaking the Dirac cones in the system of interacting electrons on honeycomb lattice are isotropic at low energies. The effect is due to the $Z_3$ subgroup of the $D_3$ symmetry group of the dispersion relation of Dirac quasiparticles. Consequences of the violations of the $Z_3$ or the sublattice symmetry are discussed.
dc.description2 RevTex pages; stylistic changes, published version
dc.identifierhttps://arxiv.org/abs/0903.0655
dc.identifierhttp://arxiv.org/abs/0903.0655
dc.identifierPhysical Review B, vol. 79, 193405 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.193405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230589
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleExplanation for the isotropy of the Dirac cone in graphene
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