Mössbauer spectrometry study of magnesioferrite particles

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Authors
Hamdeh, Hussein H.
Xia, Z.
Foehrweiser, R.
McCormick, B. J.
Willey, R. J.
Busca, G.
Advisors
Issue Date
1994-07-01
Type
Article
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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.

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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
Publisher
IEEE
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Series
Journal of Applied Physics , vol.76, no.2, pp.1135-1140
PubMed ID
DOI
ISSN
0021-8979
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