Calculation of special spin behavior of Dy3+ in DyFe1−xCrxO3 system by molecular field model

In this study, DyFe 1− x Cr x O 3 (DFCO) was synthesized by sol-gel and underwent magnetic measurements and analysis. The experimental data were fitted and calculated by a four-sublattice molecular field model. Unlike previous studies, we found that in DyFe 1− x Cr x O 3 , the spin of the A-site rare earth ion Dy 3+ also changed simultaneously with the spin reorientation of the Fe 3+ /Cr 3+ ions. The effective spin is defined as the projection of the A site’s total spin on the B site’s spin plane, and the curve of temperature changes was obtained after fitting. This is convincing and, at the same time, provides a reference for the development of spintronic devices in the future.