混合整数自旋的Ising纳米线的磁性行为:蒙特卡罗研究

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Nano Research Pub Date : 2023-03-30 DOI:10.4028/p-m5cw02

A. Lafhal, E. M. Jalal, A. Hasnaoui, H. Saadi, N. Hachem, M. Madani, M. El Bouziani

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引用次数: 1

摘要

采用蒙特卡罗模拟方法研究了自旋为1和自旋为2的亚铁磁性混合立方Ising纳米线的磁性和热学性质。说明了最近离子(JAB)和次近邻离子(JA和JB)交换相互作用以及单离子各向异性(DA和DB)对临界温度和补偿温度的影响。此外，还绘制了不同JA/|JAB|值在(温度、各向异性)平面上的相图。系统表现出非常丰富而有趣的行为，即一阶和二阶相变、三临界点和补偿现象。最后，研究了磁滞回线与各向异性、交换相互作用和温度的关系。

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Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study

The magnetic and thermal properties of a ferrimagnetic mixed spin-1 and spin-2 cubic Ising nanowire are studied by using the Monte Carlo simulation. The influences of the nearest (JAB) and next-nearest neighbor (JA and JB) exchange interactions and the single-ion anisotropies (DA and DB) on the critical and compensation temperatures are illustrated. Moreover, the phase diagrams on the (temperature, anisotropy) plane are plotted for several values of JA/|JAB|. The system shows very rich and interesting behaviors, namely first and second order phase transitions, tricritical points and compensation phenomenon. Finally, the dependence of hysteresis loops on the anisotropies, the exchange interactions and the temperature is also investigated.

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来源期刊

Journal of Nano Research 工程技术-材料科学：综合

CiteScore

2.40

自引率

5.90%

发文量

审稿时长

4 months

期刊介绍： "Journal of Nano Research" (JNanoR) is a multidisciplinary journal, which publishes high quality scientific and engineering papers on all aspects of research in the area of nanoscience and nanotechnologies and wide practical application of achieved results. "Journal of Nano Research" is one of the largest periodicals in the field of nanoscience and nanotechnologies. All papers are peer-reviewed and edited. Authors retain the right to publish an extended and significantly updated version in another periodical.