Chirality and Correlations in Graphene

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dc.creatorBarlas, Yafis
dc.creatorPereg-Barnea, T.
dc.creatorPolini, Marco
dc.creatorAsgari, Reza
dc.creatorMacDonald, A. H.
dc.date2007-01-11
dc.date2007-06-05
dc.date.accessioned2026-07-07T08:05:43Z
dc.date.available2026-07-07T08:05:43Z
dc.descriptionGraphene is described at low-energy by a massless Dirac equation whose eigenstates have definite chirality. We show that the tendency of Coulomb interactions in lightly doped graphene to favor states with larger net chirality leads to suppressed spin and charge susceptibilities. Our conclusions are based on an evaluation of graphene's exchange and random-phase-approximation (RPA) correlation energies. The suppression is a consequence of the quasiparticle chirality switch which enhances quasiparticle velocities near the Dirac point.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0701257
dc.identifierhttp://arxiv.org/abs/cond-mat/0701257
dc.identifierPhys.Rev.Lett,98,236601(2007)
dc.identifierdoi:10.1103/PhysRevLett.98.236601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/130370
dc.subjectStrongly Correlated Electrons
dc.titleChirality and Correlations in Graphene
dc.typetext

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