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arXiv 2109.02891cond-mat.stat-mechcond-mat.mtrl-sci
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晶场和外磁场对立方结构Ising混合自旋(1-1/2-1)三层体系磁性和热力学性质的影响

Effect of crystal field and external magnetic field on the magnetic and thermodynamic properties of the Ising mixed spin (1-1/2-1) three layers system of cubic structure

Maen Gharaibeh, Ahmad Al-Qawasmeh, Abdalla Obeidat, Sufian Abedrabbo

摘要:

采用蒙特卡罗模拟方法研究了立方结构混合自旋(1-1/2-1)三层体系的相图和磁性。特别是,交换和耦合参数对系统补偿温度的影响进行了探索。更重要的是,晶体场对系统的补偿,临界温度,系统的磁性和热力学性质的影响进行了详细的探讨。发现晶体场对系统补偿和临界温度有深远的影响。我们的结果表明,晶体场的存在将导致补偿温度存在一个短范围内的负晶场值。此外,还发现了决定补偿温度和临界温度随晶场变化的晶场阈值。双峰现象证实了磁化率和比热曲线的这些结果。最后,系统的磁滞回线进行了研究,为不同的温度和晶场值,揭示了存在的两个步骤的磁滞回线,这些参数的几个值。

英文摘要:

In this work, Monte Carlo simulation was implemented to study the phase diagrams and magnetic properties of a mixed spin (1-1/2-1) three-layer system with a cubic structure. In particular, the effects of the exchange and coupling parameters on the system compensation temperature were explored. More importantly, the effect of the crystal field on the system compensation, critical temperatures, and magnetic and thermodynamic properties of the system have been explored in detail. The crystal field was found to have a profound impact on the system compensation and critical temperatures. Our results suggest that the presence of the crystal field will cause the compensation temperature to exist for a short range of negative crystal field values. Furthermore, the threshold values of the crystal field were found to determine the change in both the compensation and critical temperatures with the variation of the crystal field. The double-peak phenomena confirmed these results in the susceptibility and specific heat curves. Finally, the system magnetic hysteresis loops were studied for different temperatures and crystal field values, revealing the presence of two-step hysteresis loops for several values of these parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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