自旋霍尔效应驱动惯性磁化的稳定性

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-10-17 DOI:10.1016/j.jmmm.2025.173595

Yan-Ting Wang , Si-Jia Chen , Zai-Dong Li

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引用次数: 0

摘要

基于惯性Landau-Lifshitz-Gilbert方程，采用四阶龙格-库塔数值模拟和线性稳定性分析相结合的方法，系统地揭示了惯性效应和自旋霍尔效应耦合效应对磁化稳定性的调控机制。数值模拟结果表明，该系统具有自稳定特性。理论分析表明，在没有外加磁场的情况下，自旋霍尔角电流密度相图的构建表明，惯性效应显著影响稳定区的分布。本研究揭示了惯性时间尺度对磁化稳定性的调节机制，为基于惯性效应的磁存储器件设计提供了理论基础。

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Stability of inertial magnetization driven by spin Hall effect

Based on the inertial Landau–Lifshitz–Gilbert equation, this study systematically reveals the regulatory mechanisms of the coupling effect between inertial effects and spin Hall effects on magnetization stability by employing a combined approach of fourth-order Runge–Kutta numerical simulation and linear stability analysis. Numerical simulations demonstrate that the system exhibits self-stabilizing characteristics. Theoretical analysis reveals that in the absence of an external magnetic field, the construction of a spin Hall angle-current density phase diagram shows that inertial effects significantly influence the distribution of stable regions. This research uncovers the regulatory mechanisms of inertial time scales on magnetization stability, providing a theoretical foundation for the design of magnetic memory devices based on inertial effects.

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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.