Neutron diffraction studies of Fe-substituted Mn 2 O 3

A series of Mn 2− x Fe x O 3 ( x = 0.0 – 1.0) compounds have been studied for their nuclear and magnetic structure using neutron diffraction experiments. All the compounds of this series form in bixbyite-type structure, but the crystal symmetry changes from orthorhombic to cubic as Fe content increases from x = 0.75–1.0; correspondingly, the magnetism is induced at room temperature. We present and discuss the results of analysis on the Rietveld refinement of the neutron powder diffraction data for all the four samples.