Possible cage motion of interstitial Fe in ?-Al 2 O 3 (Articolo in rivista)

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  • Possible cage motion of interstitial Fe in ?-Al 2 O 3 (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Alternative label
  • H. P. Gunnlaugsson1, K. Johnston2, H. Masenda3, R. Mantovan4, T. E. Mølholt5, K. Bharuth-Ram6,7, H. P. Gislason5, G. Langouche8, M. B. Madsen9, D. Naidoo3, S. Ólafsson5, G. Weyer1 (2013)
    Possible cage motion of interstitial Fe in ?-Al 2 O 3
    in Hyperfine interactions (Dordr., Online); Kluwer, Dordrecht (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • H. P. Gunnlaugsson1, K. Johnston2, H. Masenda3, R. Mantovan4, T. E. Mølholt5, K. Bharuth-Ram6,7, H. P. Gislason5, G. Langouche8, M. B. Madsen9, D. Naidoo3, S. Ólafsson5, G. Weyer1 (literal)
Pagina inizio
  • 33 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.springer.com/article/10.1007/s10751-012-0697-1 (literal)
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  • 219 (literal)
Rivista
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  • 1. Department of Physics and Astronomy, Aarhus University, 8000, Aarhus C, Denmark 2. Physics Department, ISOLDE/CERN, 1211, Geneva 23, Switzerland 3. School of Physics, University of the Witwatersrand, WITS, 2050, South Africa 4. Laboratorio MDM, IMM-CNR, Via Olivetti 2, 20864, Agrate Brianza (MB), Italy 5. Science Institute, University of Iceland, Dunhaga 3, 107, Reykjavík, Iceland 6. School of Physics, University of KwaZulu-Natal, Durban, 4001, South Africa 7. iThemba LABS, P.O. Box 722, Somerset West, 7129, South Africa 8. Instituut voor Kern- en Stralingsfysica, University of Leuven, 3001, Leuven, Belgium 9. Niels Bohr Institute, University of Copenhagen, 2100, Copenhagen, Denmark (literal)
Titolo
  • Possible cage motion of interstitial Fe in ?-Al 2 O 3 (literal)
Abstract
  • In addition to spectral components due to Fe2 + and Fe3 + , a single line is observed in emission Mössbauer spectra following low fluence (<1015 cm - 2) implantation of 57Fe*, 57Mn and 57Co in ?-Al2O3. For the 57Co and 57Mn implantations, the intensity of the single line is found to depend on the emission angle relative to the crystal symmetry axis. This angular dependence can be explained by a non-isotropic f-factor and/or motion of the Fe ion between sites in an interstitial cage. It is argued that interstitial cage motion is a more likely explanation, as this can account for the lack of quadrupole splitting of the line. (literal)
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