平面内磁化yig薄膜中交换自旋波波导模式的各向异性

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-04-25 DOI:10.1016/j.jmmm.2025.173117

V.V. Tikhonov, A.S. Ptashenko, A.V. Sadovnikov

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引用次数: 0

摘要

研究表明，外延YIG薄膜中的能量传递是通过交换自旋波（ESWs）的波导模式进行的，ESWs在非均匀交换相互作用连接的自旋矩进动波中作为交换功率的载体。提出了一种计算ESW模式色散和能量特性的方法。研究表明，平面内磁化YIG薄膜中的ESW模式具有明显的各向异性。ESW模态的各向异性是由进动波中存在线性和椭圆极化引起的。这两种极化的叠加使自旋矩进动轨迹发生畸变，引起椭圆轨迹对称轴的旋转。所提出的计算方法与实验数据吻合较好，大大提高了静磁波的理论水平

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Anisotropy of waveguide modes of exchange spin waves in in-plane magnetized yig films

It has been demonstrated that energy transfer in epitaxial YIG films is carried out via waveguide modes of exchange spin waves (ESWs), which serve as carriers of exchange power in the precessional wave of spin moments linked by inhomogeneous exchange interaction. A methodology for calculating the dispersion and energy characteristics of ESW modes is proposed. It has been established that ESW modes in in-plane magnetized YIG films exhibit pronounced anisotropic properties. The anisotropy of ESW modes is shown to be caused by the presence of linear and elliptical polarization in the precession wave. The superposition of these two types of polarization distorts the trajectory of spin moment precession and induces a rotation of the symmetry axes of the elliptical trajectory. The proposed calculation methodology aligns well with experimental data and significantly enhances the theory of magnetostatic waves

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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.