van der Waals interactions in density functional theory using Wannier functions: Improved C-6 and C-3 coefficients by a different approach (Articolo in rivista)

Type
Label
  • van der Waals interactions in density functional theory using Wannier functions: Improved C-6 and C-3 coefficients by a different approach (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.85.073101 (literal)
Alternative label
  • A. Ambrosetti, P.L. Silvestrelli (2012)
    van der Waals interactions in density functional theory using Wannier functions: Improved C-6 and C-3 coefficients by a different approach
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Ambrosetti, P.L. Silvestrelli (literal)
Pagina inizio
  • 073101 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 85 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • .Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy, DEMOCRITOS Natl Simulat Ctr, I-34136 Trieste, Italy (literal)
Titolo
  • van der Waals interactions in density functional theory using Wannier functions: Improved C-6 and C-3 coefficients by a different approach (literal)
Abstract
  • A different implementation is proposed for including van der Waals interactions in density functional theory using the maximally localized Wannier functions. With respect to the previous DFT/vdW-WF method, the present DFT/vdW-WF2 approach, which is based on the simpler London expression and takes into account the intrafragment overlap of the localized Wannier functions, leads to a considerable improvement in the evaluation of the C-6 van der Waals coefficients, as shown by the application to a set of selected dimers. Preliminary results on Ar on graphite and Ne on the Cu(111) metal surface also suggest that the C-3 coefficients characterizing molecule-surfaces van der Waals interactions are better estimated with this scheme. (literal)
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