Vibrational properties of MnO and NiO from DFT plus U-based density functional perturbation theory (Articolo in rivista)

Type
Label
  • Vibrational properties of MnO and NiO from DFT plus U-based density functional perturbation theory (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.84.161102 (literal)
Alternative label
  • Floris, A.; de Gironcoli, S.; Gross, E. K. U.; Cococcioni, M. (2011)
    Vibrational properties of MnO and NiO from DFT plus U-based density functional perturbation theory
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Floris, A.; de Gironcoli, S.; Gross, E. K. U.; Cococcioni, M. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 84 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 16 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Kings College London; International School for Advanced Studies; CNR IOM DEMOCRITOS Simulat Ctr; Max Planck Society; University of Minnesota System (literal)
Titolo
  • Vibrational properties of MnO and NiO from DFT plus U-based density functional perturbation theory (literal)
Abstract
  • We introduce an extension of the density functional perturbation theory (DFPT) that allows self-consistent linear-response calculations from a DFT + U ground state. Using this scheme, the full phonon dispersion of strongly correlated materials, whose ground state can be captured with Hubbard-corrected functionals, can be accessed with unprecedented accuracy and numerical efficiency. The tool is applied to the study of MnO and NiO in their antiferromagnetic (AFII) ground state. Our results confirm the highly noncubic behavior of these systems and show a strong interplay between features of the phonon spectrum and the occupation of specific d states, suggesting the possibility to investigate the electronic structure of these materials through the analysis of their phonon spectrum. (literal)
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