Magnetic structure evolution in mechanically milled nanostructured ZnFe2O4 particles

Jianzhong Jiang, P. Wynn, Steen Mørup, T. Okada, F.J. Berry

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Nanostructured partially-inverted ZnFe2O4 particles have been prepared from bulk ZnFe2O4 by high-energy ball milling in an open container. The grain size reduction, cation site distributions, and the evolution of magnetic structures have been studied by x-ray diffraction with Rietveld structure refinements, transmission electron microscopy, and Mossbauer spectroscopy. It is found that a change of magnetic structure from an antiferromagnetic to a ferrimagnetic (or ferromagnetic) structure occurs in the milled samples. This change is correlated with the redistribution of the cations, Zn and Fe, in the A and B sublattics.
Original languageEnglish
JournalNanostructured Materials
Issue number5-8
Pages (from-to)737-740
Publication statusPublished - 1999

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