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Mössbauer study of Mn-Zn spinel ferrites prepared by a wet chemical method

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Abstract

Theγ-ray resonance technique has been employed for the study of the magnetic structure of a series of Mn-Zn ferrites, prepared by a wet chemical method, before and after high-temperature annealing. In agreement with previously reported results, ionic spin relaxation has been observed for the annealed sample Mn0.4 Zn0.6 Fe2 O4. On the other hand, the unannealed sample with the same concentration has shown the existence of superparamagnetic clusters, as proposed by Ishikawa, which exist simultaneously with ferrimagnetic regions in the material. These findings are explained in terms of the magnetic disorder resulting from the particular method of preparation.

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Authors and Affiliations

  1. Instituto G. Donegani S. p. A., Novara, Italy

    M. Petrera, A. Gennaro & N. Burriesci

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  1. M. Petrera
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  2. A. Gennaro
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  3. N. Burriesci
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Petrera, M., Gennaro, A. & Burriesci, N. Mössbauer study of Mn-Zn spinel ferrites prepared by a wet chemical method. J Mater Sci 17, 429–437 (1982). https://doi.org/10.1007/BF00591478

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  • DOI: https://doi.org/10.1007/BF00591478

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