Journal
PHYSICA B-CONDENSED MATTER
Volume 407, Issue 18, Pages 3893-3896Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2012.06.017
Keywords
Magnetic nanoparticles; Mossbauer spectroscopy
Categories
Funding
- FAPERJ
- CAPES
- CNPq
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A simple model, based on the relative occupancy of tetrahedral and octahedral sites by different cations, is proposed for the magnetocrystalline anisotropy of mixed ferrite nanoparticles. According to this model, the total magnetocrystalline anisotropy is the weighted average of the contributions of the anisotropies of Fe3+ and M2+ ions in A and B sites. The model predictions are confirmed in the case of cobalt-zinc ferrite. (C) 2012 Elsevier B.V. All rights reserved.
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