抄録
Magnetic susceptibilities of the primary solid solutions of Cr with Mn, Fe or Co were determined. The results are analysed by taking into account the impurity band which is essentially important for the interpretation of the electronic structure of the solid solution. The legitimacy of the rigid band approximation is confirmed for Cr–Mn series. In Cr–Fe and Cr–Co series, the excess electrons of the impurity atoms are localized and polarized so as to give localized magnetic moments of 2.8 μB and 2.9 μB on Fe and Co atoms respectively. Their transition temperatures were determined by measurement of the electrical resistances and thermal expansivities. Their composition dependence is explained qualitatively on the model of the energy bands derived from the analysis of their magnetic susceptibilities.
