Unveiling Complex Magnetization Behaviors in Erfe1- X Mn X O3 (X = 0, 0.1, and 0.2) Single Crystals: Insights from Static and Pulsed High Magnetic Field Studies

Abstract

● ABSTRACTThe magnetization behaviors of ErFe1-xMnxO3 (x = 0, 0.1, and 0.2) single crystal samples have been investigated under static and pulsed high magnetic fields along all principal crystallographic axes. The experimental results reveal that Mn3+ doping increases the antiferromagnetic ordering temperature of the Er3+-sublattice. The critical magnetic fields of metamagnetic transition related to the Er3+- and Fe3+-sublattices are depressed by the Mn3+ doping, possibly due to additional lattice distortion from the Jahn-Teller Mn3+ ion. This distortion alters magnetocrystalline anisotropy and the canting angles of antiferromagnetic interactions in Er3+- and Fe3+-sublattices respectively. On the other hand, the doped Mn3+ ions partially disrupt antiferromagnetic interaction in the Fe3+-sublattice resulting in an increase in local magnetic moments. This enhances the effective magnetic field acting on the Er3+ ion, thereby causing significant changes in the interaction between Er3+ and Fe3+ ions. It is assumed that the controlled doping can manipulate magnetic interaction between Er3+- and Fe3+(Mn3+)-sublattices, thereby altering the critical temperature and magnetic field of spin reorientation and switching transitions. This study contributes to understanding the 3d-4f interaction mechanism in this system.

Keywords: Pulsed magnetic field, Spin reorientation transition, Spin switch transition, Magnetic phase diagrams