Contribution of the terahertz vibrations to the high-temperature thermal conductivity of vitreous silica (Articolo in rivista)

Type
Label
  • Contribution of the terahertz vibrations to the high-temperature thermal conductivity of vitreous silica (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1080/14786430802438192 (literal)
Alternative label
  • Baldi, G; Fabiani, E; Fontana, A; Giordano, VM; Monaco, G; Ruocco, G; Sette, F (2008)
    Contribution of the terahertz vibrations to the high-temperature thermal conductivity of vitreous silica
    in Philosophical magazine (2003, Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Baldi, G; Fabiani, E; Fontana, A; Giordano, VM; Monaco, G; Ruocco, G; Sette, F (literal)
Pagina inizio
  • 3915 (literal)
Pagina fine
  • 3923 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 88 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 33-35 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Baldi, G.] ESRF, INFM, CNR, CRS SOFT OGG, Grenoble, France; [Fabiani, E.] CEA LETI Minatec, Grenoble 9, France; [Fontana, A.] Univ Trent, Dept Phys, Trento, Italy; [Fontana, A.; Ruocco, G.] Univ Roma La Sapienza, INFM, CNR, CRS SOFT, Rome, Italy; [Giordano, V. M.; Monaco, G.; Sette, F.] European Synchrotron Radiat Facil, F-38043 Grenoble, France; [Ruocco, G.] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy (literal)
Titolo
  • Contribution of the terahertz vibrations to the high-temperature thermal conductivity of vitreous silica (literal)
Abstract
  • A combined inelastic X-ray and neutron scattering experiment is performed on the prototypical glass vitreous silica. The complementarity of the two techniques is exploited to determine the dynamic structure factor in a wide range of energies and wavevectors. The vibrational-mode spectral density is then used to compute the high-temperature thermal conductivity. The acoustic-like modes persisting at THz frequencies are shown to represent a relevant heat conduction channel, although they cannot account for the entire thermal conductivity. (literal)
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