Abstract
The magnetic susceptibility of dilute mixtures of Mn in Se was measured up to 1100\ifmmode^\circ\else\textdegree\fi{}C. These results indicate that the solubility of Mn in liquid Se is very small, rising to only 0.19 at.% at 895\ifmmode^\circ\else\textdegree\fi{}C and 0.52 at.% at 965\ifmmode^\circ\else\textdegree\fi{}C. In the temperature range 900-1100\ifmmode^\circ\else\textdegree\fi{}C, where the Mn solubility is large enough to permit accurate measurements, the Mn susceptibility is found to be approximately that of a free $\frac{5}{2}$ spin. The effective magnetic moment appears to be reduced only slightly by $s\ensuremath{-}d$ interaction. The susceptibility of Mn${\mathrm{Se}}_{2}$ was measured between room temperature and 950\ifmmode^\circ\else\textdegree\fi{}C in the course of this work and is found to follow a Curie-Weiss temperature dependence. The effective Mn magnetic moment in Mn${\mathrm{Se}}_{2}$ is approximately the same as a free $\frac{5}{2}$ spin.
Published Version
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