Kinetic hysteresis study of a sandwiched trilayer system with square lattices

In this study, we investigated the dynamic hysteresis properties of a sandwiched trilayer system with square lattices in a mixed-spin (1/2,1,1/2) configuration using the dynamic mean-field approach. We have analyzed the effects of temperature, magnetic field amplitude, intralayer couplings (J1, J2) and interlayer bilinear coupling (J3) on the remanent magnetization and coercive field. The results reveal that high positive interlayer bilinear interaction parameter values lead to high coercivity, indicating stronger magnetic coupling between layers, whereas negative J3 or low J2 values decrease the coercivity and exhibit complex remanent magnetization behavior. Double and triple hysteresis loops were observed in this system. These results shed light on how to adjust the magnetic characteristics for possible use in magnetic sensors and data storage technologies.