Crystal structure of Mn-containing perovskite-type oxyfluorides

Abstract

We have been successful in perovskite-type oxyfluorides, BaFeO₂F, SrFeO₂F, BaInO₂F, PbScO₂F, PbFeO₂F and investigated their crystal structure. As a result, all compounds except for PbFeO₂F have cubic structure, even though their tolerance factor are not equal to 1. On the other hands, it is indicated that Mn-containing oxyflurides, PbMnO₂F, SrMnO₂F, Sr(Mn_1/2Ga_1/2)O₂F, have tetragonal structure. In this study, we try to prepare high purity SrMnO₂F, Sr(Mn_1/2Ga_1/2)O₂F and investigates the crystal structure.