Anisotropic compression in the high-pressure regime of pure and chromium-doped vanadium dioxide (Articolo in rivista)

Type
Label
  • Anisotropic compression in the high-pressure regime of pure and chromium-doped vanadium dioxide (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.85.184108 (literal)
Alternative label
  • Mitrano, Matteo; Maroni, Beatrice; Marini, Carlo; Hanfland, Michael; Joseph, Boby; Postorino, Paolo; Malavasi, Lorenzo (2012)
    Anisotropic compression in the high-pressure regime of pure and chromium-doped vanadium dioxide
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Mitrano, Matteo; Maroni, Beatrice; Marini, Carlo; Hanfland, Michael; Joseph, Boby; Postorino, Paolo; Malavasi, Lorenzo (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 85 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 18 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Sapienza University Rome; University of Pavia; European Synchrotron Radiat Facil; Sapienza University Rome (literal)
Titolo
  • Anisotropic compression in the high-pressure regime of pure and chromium-doped vanadium dioxide (literal)
Abstract
  • We present structural studies of V1-xCrxO2 (pure, 0.7 %, and 2.5% Cr-doped) compounds at room temperature in a diamond anvil cell for pressures up to 20 GPa using synchrotron x-ray powder diffraction. All the samples studied show a persistence of the monoclinic M-1 symmetry between 4 and 12 GPa. Above 12 GPa, the monoclinic M-1 symmetry changes to isostructural M-x phase (space group P2(1)/c) with a significant anisotropy in lattice compression of the b-c plane of the M-1 phase. This behavior can be reconciled invoking the pressure-induced charge delocalization. (literal)
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