| Abstract: | In the ZnxMn2?xSb system, the tetragonal, anti-PbFCl structure occurs between Mn2Sb and ZnMnSb. The latter is essentially an ordered compound with Zn occupying the ninefold coordinated site (II), and Mn the tetrahedral layer positions (I). Magnetic measurements indicate ferromagnetic ordering of Mn as in isostructural AlMnGe, GaMnGe, and the Mn(I) substructure of ferrimagnetic Mn2Sb. The observed moment of ZnMnSb and the ZnxMn2?xSb single-phase field are consistent with the unusual low spin d6 configuration (+1 formal oxidation state) postulated for Mn(I) in Mn2Sb, AlMnGe, and GaMnGe. |
