We apply Monte Carlo simulation using the Metropolis single spin flip algorithm to study the magnetic and thermodynamic properties of a ferrimagnetic mixed-spin, \(S=\frac{7}{2}\) and \(\sigma =\frac{3}{2}\) alternating on a square lattice. The ground state phase diagrams are obtained for different parameters characterizing the system. The effects of the exchange coupling, the crystal field, the external magnetic field and the temperature on the magnetization, the specific heat, the compensation points and hysteresis loops are discussed in detail. The obtained results show that the studied system exhibits a compensation phenomenon, which depends on the combination of parameters in the Hamiltonian. Under certain physical parameters, multiple cycle hysteresis loop patterns have been observed in the system. It is found that the various parameters characterizing the Hamiltonian and the temperature strongly affect the coercivity and the remanence magnetization of the system. Comparing our results with other theoretical and experimental studies, a good agreement has been obtained qualitatively.

Graphical abstract

中文翻译：

---

混合伊辛亚铁磁模型中的补偿和磁滞行为：蒙特卡罗研究

我们使用 Metropolis 单自旋翻转算法应用蒙特卡罗模拟来研究亚铁磁混合自旋\(S=\frac{7}{2}\)和\(\sigma =\frac{3 }{2}\)在方格上交替。针对表征系统的不同参数获得基态相图。详细讨论了交换耦合、晶体场、外部磁场和温度对磁化强度、比热、补偿点和磁滞回线的影响。所得结果表明，所研究的系统表现出补偿现象，该现象取决于哈密顿量中的参数组合。在某些物理参数下，在系统中观察到多周期磁滞回线模式。研究发现表征哈密顿量的各种参数和温度强烈影响系统的矫顽力和剩磁。将我们的结果与其他理论和实验研究进行比较，在定性上获得了很好的一致性。

图形概要