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Effect of diamagnetic substitutions in BaFe12O19 on the magnetic properties

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Abstract

The exchange parameters of BaFe12O19 have been calculated from the temperature dependence of the saturation magnetization using the molecular field theory. Under the assumption that the exchange parameters do not change for diamagnetic substitutions of the Fe3+ ions, it is shown that the temperature coefficient of the magnetization at room temperature cannot be decreased without decreasing the magnetization. Diamagnetic substitution in the octahedralf 2 site would solely increase the saturation magnetization.

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  1. A. Grill

    Present address: Dept. of Metallurgy, Univ. of British Columbia, Vancouver, Canada

Authors and Affiliations

  1. Institut für Werkstoffe der Elektrotechnik, Ruhr-Universität, D-4630, Bochum, Fed. Rep. Germany

    A. Grill & F. Haberey

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  1. A. Grill
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  2. F. Haberey
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Grill, A., Haberey, F. Effect of diamagnetic substitutions in BaFe12O19 on the magnetic properties. Appl. Phys. 3, 131–134 (1974). https://doi.org/10.1007/BF00884410

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  • DOI: https://doi.org/10.1007/BF00884410

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