Synthesis and crystal structures of n = 3 Ruddlesden–Popper phase CaSr3Mn3−xFexO10 (x = 1.5, 1.0)

The triple layer Ruddlesden–Popper phases (n = 3 R–P phase) CaSr3Mn3−xFexO10 (x = 1.5, 1.0) were stabilized by solid state reaction in air atmosphere and their crystal structures were refined with neutron diffraction data obtained at room temperature and at 5 K by means of Rietveld method. Both phases adopt space group I4/mmm and revealed no magnetic reflection at low temperature. Magnetic susceptibility data of CaSr3Mn1.5Fe1.5O10 and CaSr3Mn2FeO10 compound showed spin glass transition at 25 and 12 K, respectively.