Interactions and phase transitions on graphene's honeycomb lattice

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dc.creatorHerbut, Igor F.
dc.date2006-06-07
dc.date2006-06-16
dc.date.accessioned2026-07-07T07:12:31Z
dc.date.available2026-07-07T07:12:31Z
dc.descriptionThe low-energy theory of interacting electrons on graphene's two-dimensional honeycomb lattice is derived and discussed. In particular, the Hubbard model in the large-N limit is shown to have a semi-metal - antiferromagnetic insulator quantum critical point in the universality class of the Gross-Neveu model. The same equivalence is conjectured to hold in the physical case N=2, and its consequences for various physical quantities are examined. The effects of the long-range Coulomb interaction and of the magnetic field are discussed.
dc.descriptionfour pages, one figure; few typos corrected, references added
dc.identifierhttps://arxiv.org/abs/cond-mat/0606195
dc.identifierhttp://arxiv.org/abs/cond-mat/0606195
dc.identifierPhys.Rev.Lett. 97 (2006) 146401
dc.identifierdoi:10.1103/PhysRevLett.97.146401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/112102
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.subjectHigh Energy Physics - Theory
dc.titleInteractions and phase transitions on graphene's honeycomb lattice
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