Structural and magnetic studies of perovskite YCr0.5Mn0.5O3

Abstract

The structure of YCr_0.5Mn_0.5O₆, established from Rietveld refinement of powder neutron diffraction data, contains Cr and Mn that are disordered on the octahedral sites. The structure is best described in the orthorhombic space group Pbnm. Low temperature neutron diffraction data reveal a G-type antiferromagnetic type arrangement, with a ferromagnetic component along the b-axis, indicating that the Cr and Mn couple ferro (or possibly ferri) magnetically to each other.