Study of the Structure, Multiferroic, and Magnetic Order of Er0.9La0.1Cr0.8Fe0.2O₃

Herein, the multiferroic perovskite Er 0.9 La 0.1 Cr 0.8 Fe 0.2 O 3 was synthesized using the sol–gel method, and its structure and multiferroic properties were investigated. The magnetic order of Er 0.9 La 0.1 Cr 0.8 Fe 0.2 O 3 was analyzed through magnetic entropy change curves. Furthermore, a four‐sublattice molecular field model was constructed to study the spin reorientation phenomena and explain the differences between various spin redirections through magnetic order correction. This work will provide a new perspective for studying the properties of type II multiferroic materials.