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Journal of Physics and Chemistry of Solids
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The influence of 3d transition metal substitution on the magnetic properties of MnGaGe

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Abstract

A study has been made of the effect of 3d transition element substitution on the magnetic moment and Curie temperature of MnGaGe. Substitution of 3d elements with atomic number less than Mn (i.e. Ti, V, or Cr) cause relatively small changes in magnetic properties, whereas substitution of Fe, Co, Ni and Cu cause a large reduction in moment and Curie temperature, e.g. substitution of 5 at.% Fe for Mn causes the moment to decrease by 30 per cent. The moment and ferromagnetism of MnGaGe are described in terms of a band model involving both strongly correlated and intinerant 3d electrons. The effect of 3d element substitution may be qualitatively understood in terms of this model. © 1975.

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Journal of Physics and Chemistry of Solids

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