Long-range orbital order in a degenerate-orbital Hubbard model: absence in low-dimensions (Articolo in rivista)

Type
Label
  • Long-range orbital order in a degenerate-orbital Hubbard model: absence in low-dimensions (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1367-2630/9/7/238 (literal)
Alternative label
  • Noce, C (2007)
    Long-range orbital order in a degenerate-orbital Hubbard model: absence in low-dimensions
    in New journal of physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Noce, C (literal)
Pagina inizio
  • 238-1 (literal)
Pagina fine
  • 238-8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INFM, CNR, Lab Reg SupeMat, Salerno, Italy; Univ Salerno, Dipartimento Fis, ER Caianiello, I-84081 Baronissi, Italy (literal)
Titolo
  • Long-range orbital order in a degenerate-orbital Hubbard model: absence in low-dimensions (literal)
Abstract
  • We investigate the possibility of long range orbital order in low-dimensional systems. The study is performed within a two-orbital Hubbard model by means of the Bogoliubov's inequality. We show that, in one- and two-dimensions, and when a narrow conduction band is concerned, this model does not exhibit orbital order at any filling and any finite temperature. (literal)
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