Magnetic Behavior of Ternary Prussian Blue Analog in Presence Single-Ion Anisotropy

In this work, with help of Monte Carlo simulation method, we have investigated the effects of single-ion anisotropy on magnetic properties of the Prussian blue analog (Fe_p^IIMn_1-p^II)1.5[Cr^III(CN)₆].nH₂O consisting of three different Ising spins S_A=3/2, S_B=2, and S_c=5/2. We have found that the critical temperature T_c of this system nearly linear changes dependent upon the interaction ratio R for any mixing ratio p value, and the critical interaction R_c decreases for increasing D values. On the other hand, we have shown that the critical and compensation temperature of the model smoothly increase for increasing D values. In addition, we have demonstrated that the magnetic pole inversion can appear, and compensation temperature T_comp decreases for the increasing external magnetic field, dependent upon some values of the Hamiltonian parameters. As a result, we state that single-ion anisotropy can be used as a control parameter like mixing rate p to arrange the critical and compensation temperature of the Prussian blue analog (Fe_p^IIMn_1-p^II)_1.5[Cr^III(CN)₆].nH₂O.