Chirality and correlations in graphene (Articolo in rivista)

Type
Label
  • Chirality and correlations in graphene (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.98.236601 (literal)
Alternative label
  • Barlas, Y; Pereg-Barnea, T; Polini, M; Asgari, R; MacDonald, AH (2007)
    Chirality and correlations in graphene
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Barlas, Y; Pereg-Barnea, T; Polini, M; Asgari, R; MacDonald, AH (literal)
Pagina inizio
  • 236601 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 98 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Texas, Dept Phys, Austin, TX 78712 USA; NEST CNR INFM, I-56126 Pisa, Italy; Scuola Normale Super Pisa, I-56126 Pisa, Italy; Inst Studies Theoret Phys & Math, Tehran 193955531, Iran (literal)
Titolo
  • Chirality and correlations in graphene (literal)
Abstract
  • Graphene 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 correlation energies. The suppression is a consequence of the quasiparticle chirality switch which enhances quasiparticle velocities near the Dirac point. (literal)
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