Competition of Zeeman energy, antiferromagnetic interchain coupling, and anisotropy energy in the Ising ferrimagnet
Phys. Rev. B 113, 184416 – Published 4 May, 2026
DOI: https://doi.org/10.1103/fmhs-3rqw
Abstract
The vital competition between Zeeman energy, antiferromagnetic (AFM) interchain coupling, and anisotropy energy is studied using angular-dependent and hydrostatic pressure based magnetization techniques in the crystal. It reveals that the critical fields needed for the field-driven three-dimensional (3D) ferrimagnetic (FIM) to 3D ferromagnetic (FM) transition follow the cosine function of angles, which is often described in textbooks. It is rather noteworthy that the equidistant magnetization plateaus in the 3D-FIM to 3D-FM transition adhere to this empirical relation. Moreover, the equidistant nature of the magnetization steps remains unaltered under high-pressure, requiring higher magnetic fields to initiate the field-induced transitions. These hidden aspects of magnetization plateaus imply that the competition between the Zeeman energy and antiferromagnetic interchain coupling gives rise to this remarkable behavior in this Ising ferrimagnet. However, the influence of anisotropy energy leads to a monotonous change in magnetization without showing magnetization plateaus.
