Modification of the multiferroic properties of Y CrO3 and LuCrO3 by Mn substitution

The effect of Mn substitution on the multiferroic properties of Y CrO3 and LuCrO3 has been investigated. Solid solutions of the type Y Cr1−xMnxO3 and LuCr1−xMnxO3 (x=0.0–0.3x=0.0–0.3) possess orthorhombic structures with Pnma and Pbnm   space groups respectively. Both the series of materials show canted antiferromagnetic behavior with TNTN decreasing with increasing xx. They also exhibit ferroelectricity with the transition temperature decreasing with increases in xx. The x=0.3x=0.3 compositions show improved magnetic properties with a ferroelectric transition in the 418–425 K range.