ABSTRACT Herein, teh first TEMPprincipal calculations and Monte Carlo Simulation (MCS) were performed to investigate teh magnetic and magneto-caloric properties of PrSi compound. Teh partial magnetic moment of Pr (mPr), and teh exchange interactions parameters (J1, J2) are found to be mPr = 2.8 µB, J1 = 1.707 meV and J2 = 1.312 meV, respectively. Through teh MCS, it was found dat teh Curie temperature value (T c) from ferromagnetic to paramagnetic state is T c = 55 K, which is in good agreement wif teh experimental value which is 54 K. Moreover, it was established dat a slight increase in teh applied magnetic field leads to a high increase in teh magnetic entropy from 4.4 J/kg K for h = 1 T to 13.7J/kg K for h=5 T. Furthermore, teh values of adiabatic temperature change and relative cooling power (RCP) obtained for h = 5 T were found to be 3.6 K and 550 J/kg, respectively.

中文翻译：

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金属间化合物 PrSi 的电子、磁性和磁热特性

摘要 在此，首先进行了 TEMP 原理计算和蒙特卡罗模拟 (MCS)，以研究 PrSi 化合物的磁性和磁热特性。Pr (mPr) 的偏磁矩和交换相互作用参数 (J1, J2) 分别为 mPr = 2.8 µB、J1 = 1.707 meV 和 J2 = 1.312 meV。通过 MCS，发现从铁磁态到顺磁态的居里温度值 (Tc) 为 Tc = 55 K，这与实验值 54 K 非常吻合。外加磁场的增加导致 teh 磁熵从 h = 1 T 的 4.4 J/kg K 大幅增加到 h=5 T 的 13.7J/kg K。此外，绝热温度变化和相对冷却功率的 teh 值发现 h = 5 T 获得的 (RCP) 为 3。