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    Mössbauer spectrometry study of magnesioferrite particles

    Date
    1994-07-01
    Author
    Hamdeh, Hussein H.
    Xia, Z.
    Foehrweiser, R.
    McCormick, B. J.
    Willey, R. J.
    Busca, G.
    Metadata
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    Citation
    Hamdeh, H. H.; Xia, Z.; Foehrweiser, R.; McCormick, B. J.; Willey, R. J.; Busca, G.; , "Mössbauer spectrometry study of magnesioferrite particles," Journal of Applied Physics , vol.76, no.2, pp.1135-1140, Jul 1994 doi: 10.1063/1.357835
    Abstract
    Fine particles of ferrimagnetic MgFe2O4 were synthesized through a sol-gel supercritical drying procedure, then cold-pressed and heated at 500 and 800?°C. These materials were characterized by Mössbauer spectrometry in the temperature range 25 298 K, and in the presence of a small applied magnetic field. The Mössbauer measurements show that heat treatment results in the formation of a small percentage of a-Fe2O3, an increase in the mean particle size and hyperfine magnetic field, and a decrease in the inversion parameter of the magnesioferrite. An average anisotropy constant equivalent to the bulk magnetocrystalline anisotropy is estimated for particles with diameter D=14 nm.
    Description
    The full text of this article is not available on SOAR. WSU users can access the article via IEEE Xplore database licensed by University Libraries: http://libcat.wichita.edu/vwebv/holdingsInfo?bibId=1045954
    URI
    http://dx.doi.org/10.1063/1.357835
    http://hdl.handle.net/10057/4073
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