Investigation of the Magnetic Properties and Magnetocaloric Effect of ZnFe3C Antiperovskite: Mean-Field Theory

In this study, the magnetic, magnetocaloric, and hysteresis properties of the anti-perovskite compound ZnFe3C were investigated using a mean-field approximation. The results demonstrate that the magnetization gradually decreases with increasing temperature. Conversely, the application of an external magnetic field enhances the alignment of magnetic moments, leading to an increase in the critical temperature (Tc). The magnetic entropy change (−∆Sm) exhibits a distinct peak at Tc, while the relative cooling power (RCP) shows a linear increase. Additionally, hysteresis analysis reveals that both coercivity and remanence progressively diminish as the temperature rises, with the hysteresis loop disappearing above Tc, indicating a transition to the paramagnetic phase. These findings highlight the potential of ZnFe3C as a promising material for sustainable, high-performance magnetic refrigeration applications.