Magnetic and Crystallographic Study on the Electronic State of Interstitial Cations in MnSb

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  • Yamaguchi Yasuo
    The Research Institute for Iron, Steel and Other Metals, Tohoku University
  • Watanabe Hiroshi
    The Research Institute for Iron, Steel and Other Metals, Tohoku University

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  • Magnetic and Crystallographic Study on

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Abstract

Ferromagnetic compounds Mn1+δSb with NiAs crystal structure have a wide existing range (0≤δ≤0.22). Compounds of Mn1.05MδSb (M=Cr, Fe and Co) are prepared in order to study the electronic state of excess Mn in Mn1+δSb. It is found that the excess cations occupy the same interstitial site as Mn, and have 0 μB for the case of M=Cr and Mn and about 1 μB for M=Fe and Co, and that they reduce the total magnetization and the Curie temperature at about the same rate as the case of M=Mn. A qualitative discussion is given on the analogy of transition atom impurities in metals.

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