Phase equilibria in the Mn-rich portion of Mn–Ga binary system

Abstract The phase equilibria in the Mn-rich portion of Mn–Ga binary system were experimentally determined. The topological feature of the determined diagram was found to be similar to that reported by Wachtel and Nier [17] while the η phase with the D0 19 structure exists in a wider temperature and composition range and the τ phase has a wider solubility range. The complicated composition dependence on magnetization of the Mn-rich alloys reported by Masumoto et al. can successfully be explained with the determined phase diagram.