Compensation temperatures and hysteresis behaviors of a graphene-like trilayer

This work focuses on the ground-state phase diagram, the compensation temperatures and the critical behaviors of a ferrimagnetic graphene-like trilayer induced by crystal fields and exchange couplings. The simulation results show that a negative decrease in crystal field or an increase in exchange coupling can increase the critical temperature. More importantly, an M curve with double compensation temperatures can be observed, which is not predicted by the N e ́ el theory. This remarkable compensation phenomenon has potential application value in the field of magnetic recording.