Spin-canting and magnetic anisotropy in ultrasmall CoFe2O4 nanoparticles

Davide Peddis, M. Vasquaz Mansilla, D. Fiorani, Steen Mørup, C. Cannas, A. Musinu, G. Piccaluga, F. D'Orazio, F. Lucari

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Abstract

The magnetic properties of cobalt ferrite nanoparticles dispersed in a silica matrix in samples with different concentrations (5 and 10 wt % CoFe2O4) and same particle size (3 nm) were studied by magnetization, DC and AC susceptibility, and Mossbauer spectroscopy measurements. The results indicate that the particles are very weakly interacting. The magnetic properties (saturation magnetization, anisotropy constant, and spin-canting) are discussed in relation to the cation distribution.
Original languageEnglish
JournalJournal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical
Volume112
Issue number29
Pages (from-to)8507-8513
ISSN1520-6106
DOIs
Publication statusPublished - 2008

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