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
${({\rm Fe}_{p}^{\rm II}{\rm Mn}_{1-p}^{\rm II})}_{1.5}[{\rm Cr}^{\rm III}({\rm CN})_{6}].{\rm nH}_{2}{\rm O}$
consisting of three different Ising spins
${\rm S}_{A}=3/2$
,
${\rm S}_{B}=2$
, and
${\rm S}_{c}=5/2$
. 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
$T_{\rm comp}$
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
${({\rm Fe}_{p}^{\rm II}{\rm Mn}_{1-p}^{\rm II})}_{1.5}[{\rm Cr}^{\rm III}({\rm CN})_{6}].{\rm nH}_{2}{\rm O}$
.