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TDPAC andemission Mössbauer studies of Fe3O4(99Ru)

  • Section III.2: Magnetism and Theory
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Abstract

Hyperfine interactions of99Ru(»99Rh) nuclei in Fe3O4 were studied by means of TDPAC andemission Mössbauer spectroscopy. The isomer shift obtained from an emission Mössbauer spectrum andthe temperature dependence of the hyperfine magnetic field obtained from TDPAC measurements indicate that99Ru ions arising from99Rh nuclei dilutely doped in Fe3O4 exist as a mixed state of Ru2+ andRu3+, which is not common in ruthenium oxides. Fe3O4(99Ru) is the first example where a Ru ion in a low valence state exhibits its own magnetization in oxides.

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Authors and Affiliations

  1. The institute of Physical andChemical Research (RIKEN), Wako-shi, 351-01, Saitama, Japan

    Y. Ohkubo, Y. Kobayashi, K. Asai, T. Okada & F. Ambe

  2. Department of Applied Physics andChemistry, The University of Electro-Communications, Chofu-shi, 182, Tokyo, Japan

    K. Asai

Authors
  1. Y. Ohkubo
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  2. Y. Kobayashi
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  3. K. Asai
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  4. T. Okada
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  5. F. Ambe
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Ohkubo, Y., Kobayashi, Y., Asai, K. et al. TDPAC andemission Mössbauer studies of Fe3O4(99Ru). Hyperfine Interact 78, 535–539 (1993). https://doi.org/10.1007/BF00568188

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  • DOI: https://doi.org/10.1007/BF00568188

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