Mobility of interstitial oxygen in scandium by anelastic spectroscopy (Articolo in rivista)

Type
Label
  • Mobility of interstitial oxygen in scandium by anelastic spectroscopy (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ssc.2003.10.010 (literal)
Alternative label
  • F. Trequattrini (a); F. Cordero (b); G. Cannelli (c); R. Cantelli (a) (2004)
    Mobility of interstitial oxygen in scandium by anelastic spectroscopy
    in Solid state communications (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • F. Trequattrini (a); F. Cordero (b); G. Cannelli (c); R. Cantelli (a) (literal)
Pagina inizio
  • 217 (literal)
Pagina fine
  • 220 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 129 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • fasc. (4). Elsevier. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (a) Dipartimento di Fisica, Università di Roma \"La Sapienza\", P. le A. Moro, 2, I-00185 Roma, and INFM, Italy (b) CNR, Istituto di Acustica \"O.M. Corbino\", Via Fosso del Cavaliere 100, I-00133 Roma, and INFM, Italy (c) Dipartimento di Fisica, Università della Calabria, Arcavacata di Rende (CS), I-87036 Cosenza, and INFM, Italy (literal)
Titolo
  • Mobility of interstitial oxygen in scandium by anelastic spectroscopy (literal)
Abstract
  • The high-temperature anelastic spectrum of the solid solution Sc–O has been investigated on a polycrystalline sample at oxygen concentrations between 0.024 and ?0.9 at.% O, as estimated by residual resistivity and intentional O doping. Two thermally activated relaxation processes appear near 430 and 520 K for a vibration frequency of 3.5 kHz; both peaks are stable with thermal cycling and their intensities increase with the oxygen content, indicating that they are due to O jumps. The process at lower temperature has an intensity that strongly increases with increasing temperature, when measured at higher frequency (42 kHz), indicating that the relaxation occurs between states differing in energy by ?0.3 eV. The peak is describable by a single relaxation time, and is interpreted as due to the stress-induced hopping of single oxygen atoms between the non-equivalent tetrahedral and octahedral interstitial sites. The process at high temperature is tentatively attributed to O pairs. An estimate of the specific resistivity of O atoms has been provided. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it