Spin-reorientation in YbFeO_3

TL;DR

This study provides detailed magnetization measurements of YbFeO_3 during spin reorientation, confirming that a modified mean field theory accurately describes its behavior and highlights the role of rare earth ion anisotropy in orthoferrites.

Contribution

The paper demonstrates that a modified mean field theory effectively models YbFeO_3's magnetization, emphasizing the impact of rare earth anisotropic paramagnetism on spin reorientation.

Findings

Validation of the modified mean field theory for YbFeO_3

Confirmation of rare earth anisotropy influence on magnetization

Insight into phase transition sequences in orthoferrites

Abstract

Precise measurements of YbFeO_3 magnetization in the spin-reoirentation temperature interval are performed. It is shown that ytterbium orthoferrite is well described by a recently developed modified mean field theory developed for ErFeO_3. This validates the conjecture about the essential influence of the rare earth ion's anisotropic paramagnetism on the magnetization behavior in the reorientation regions of all orthoferrites with Gamma{4} -> Gamma{24} -> Gamma{2} phase transitions.