Magnetic Susceptibility of Manganese Selenide

Abstract

The susceptibility-temperature relation for the antiferromagnetic compound MnSe was measured over a range of temperatures between 70\ifmmode^\circ\else\textdegree\fi{}C and -196\ifmmode^\circ\else\textdegree\fi{}C. Evidence was found of a large thermal hysteresis and a dependence of susceptibility on field strength. A tentative theory is advanced to explain the thermal hysteresis in terms of three phases which possess different susceptibilities.