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Mössbauer Study on the Ordered Perovskite A2FeMoO6(A: Ca, Sr, Ba)

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Abstract

57Fe Mössbauer measurements have been conducted for the ordered perovskite A2FeMoO6 (A: Ca, Sr, Ba) in the temperature range from 4.2 K to 500 K. Temperature dependences of the parameters were consistently determined below and above T c. The values of isomer shift and hyperfine field indicate that the Fe ions are in Fe2.5+ state. There exist the disordered sites in A=Ca and Sr specimens, of which Fe seems to be in Fe3+ state.

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Authors and Affiliations

  1. School of Science and Engineering, Teikyo University, 1-1 Toyosatodai, Utsunomiya, 320, Japan

    S. Nakamura, K. Ikezaki & N. Nakagawa

  2. Department of Applied Chemistry, Utsunomiya University, 7-1-1 Yoto, Utsunomiya, 320, Japan

    Y. J. Shan

  3. Department of Science and Engineering, Waseda University, 3-4-1 Okubo, Tokyo, 169, Japan

    M. Tanaka

Authors
  1. S. Nakamura
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  2. K. Ikezaki
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  3. N. Nakagawa
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  4. Y. J. Shan
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  5. M. Tanaka
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Nakamura, S., Ikezaki, K., Nakagawa, N. et al. Mössbauer Study on the Ordered Perovskite A2FeMoO6(A: Ca, Sr, Ba). Hyperfine Interactions 141, 207–211 (2002). https://doi.org/10.1023/A:1021282809988

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  • DOI: https://doi.org/10.1023/A:1021282809988

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