Modulation of Jahn-Teller Mn3+ ion on anisotropy and high field magnetic diagram of Sm(Fe, Mn)O3

Abstract SmFeO3 and SmFe0.9Mn0.1O3 single crystal samples grown with a floating zone technique have been investigated under static and pulsed high magnetic fields along all principal crystallographic axes. Comprehensive investigation on magnetization (behavior) show that the spin switch transition and spin reorientation transition among the Sm3+ and Fe3+/Mn3+ sublattices is highly anisotropic. Especially, with the applied magnetic field along a-axis, a field induced multi-step transition was observed in SmFeO3 around compensation temperature (TComp1 ~ 3.9 K), which was not observed in Mn doped SmFe0.9Mn0.1O3 (TComp2 ~ 9.3 K). The experimental results show that the Jahn-Teller (J-T) Mn3+ ions has an important effect on anisotropy and affects the spin-reorientation and high field magnetization behavior. The study provides a clear picture to show the dominate effects between rare earth ions and transition metal ions on the complicated magnetization behavior.