Intrinsic structural distortion and exchange interactions in SmFe _x Cr_1-x O₃ compounds.

ABSTRACT: The effect of substituting different amounts of magnetic metal Fe on the magnetic properties of SmFe _x Cr_1-x O₃ (0 < x < 0.5) is reported here in order to probe the relation between the structural distortion and magnetism in these materials. The structural properties of the samples were characterized using X-ray diffraction with Rietveld refinements, and Raman spectroscopy carried out at ambient temperature. Magnetization data reveals the Neel temperature (T _N, where the Cr(Fe) ions order) increases with an increase in the average B-site ionic radius, and average Cr(Fe)-O-Cr(Fe) bond angle. By fitting the temperature dependence of the magnetic susceptibility to the Curie-Weiss law modified by the Dzyaloshinskii-Moriya

SUBMITTER: Xiang Z 

PROVIDER: S-EPMC9078590 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature