装饰三角晶格上混合自旋（3/ 2,7 /2）系统的磁性和磁滞行为：一个平均场近似

IF 2.5 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2025-06-26 DOI:10.1016/j.jmmm.2025.173286

Aqeel Raad Ghafel

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引用次数: 0

摘要

利用分子平均场近似研究了装饰铁磁混合自旋三角形体系。该研究基于Blume-Capel Ising模型分析了结果。该研究报告着眼于晶体场和外部磁场如何影响具有三角形晶格的铁磁器件，这些晶格由自旋为3/2和自旋为7/2的磁铁装饰。该报告强调了自旋3/2离子在节点上的定位，以及在晶格附近存在6个额外的自旋7/2离子。利用不同的晶体场或外部磁场改变交换相互作用，可以获得超顺磁性。新的研究表明，在保持DA/|J2| = 8和DB/|J2| = - 11不变的情况下，混合自旋三角形装饰铁磁体在不同的值下表现出超顺磁性。对于混合自旋三角形晶格，J1 = - 0.5, J2 = 1。此外，我们还获得了所研究磁系统中不同物理参数下的单个磁滞回线，包括单回线、双回线和三回线。

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Magnetic properties and hysteresis behavior of mixed spin (3/2, 7/2) systems on decorated triangular lattices: a mean field approximation

We have researched ornamented ferrimagnetic mixed spin triangular systems using the molecular mean-field approximation. The study analyzed the outcomes based on the Blume-Capel Ising model. The research report looks at how crystal fields and outside magnetic fields affect ferrimagnetic devices with triangular lattices that are decorated with both spin-3/2 and spin-7/2 magnets. The report highlights the positioning of spin-3/2 ions at the nodes and the presence of six additional spin-7/2 ions in the vicinity of the lattice. One can achieve superparamagnetic properties by altering the exchange interactions using various crystal fields or external magnetic fields. New research shows that mixed spin triangular decorated ferrimagnets show superparamagnetism at different values while keeping the same D_A/|J₂| = 8 and D_B/|J₂| = −11. For mixed spin triangular lattices, J₁ = −0.5 and J₂ = 1. In addition, we have acquired the individual hysteresis loops for different physical parameters in the magnetic system under investigation, including single, double, and triple loops.

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来源期刊

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.