Atomic scale mechanism for the Ge-induced stabilization of the tetragonal, very high-kappa, phase of ZrO(2) (Articolo in rivista)

Type
Label
  • Atomic scale mechanism for the Ge-induced stabilization of the tetragonal, very high-kappa, phase of ZrO(2) (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3641902 (literal)
Alternative label
  • F. Boscherini, F. D'Acapito, S. F. Galata, D. Tsoutsou, and A. Dimoulas (2011)
    Atomic scale mechanism for the Ge-induced stabilization of the tetragonal, very high-kappa, phase of ZrO(2)
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • F. Boscherini, F. D'Acapito, S. F. Galata, D. Tsoutsou, and A. Dimoulas (literal)
Pagina inizio
  • 121909 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Physics, University of Bologna, viale C. BertiPichat 6/2, 40127 Bologna, Italy I.O.M. - C.N.R. - O.G.G., c/o E.S.R.F., BP 220, 38043 Grenoble, France MBE Laboratory, Institute of Materials Science, NCSR DEMOKRITOS, 153 10 Athens, Greece Department of Electronics, Technological Educational Institution of Athens, 12210 Athens, Greece (literal)
Titolo
  • Atomic scale mechanism for the Ge-induced stabilization of the tetragonal, very high-kappa, phase of ZrO(2) (literal)
Abstract
  • Using x-ray absorption fine structure aided byab initiostructural simulations we demonstrate the atomic scale mechanism responsible for the stabilization of the otherwise unstable and very high-j tetragonal phase of ZrO2by the incorporation of Ge atoms. In tetragonal ZrO2the cation has a split first coordination shell formed by eight oxygen atoms. We provide a direct experimental proof that when Ge is incorporated in the oxide, four of the eight O atoms collapse towards Ge giving rise to a local structure strongly reminiscent of that found in quartz-like GeO2, thus stabilizing the tetragonal phase. (literal)
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