TbxCo100-x非晶薄膜中的四个补偿点

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-06-02 DOI:10.1016/j.jmmm.2025.173248

Akane Agui , Akino Harako , Naruki Tsuji , Xiaoxi Liu , Kazushi Hoshi , Kosuke Suzuki , Manabu Takahashi , Hiroshi Sakurai

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引用次数: 0

摘要

我们利用磁康普顿散射和SQUID测量研究了TbxCo100-x中磁矩的温度和组成依赖性。我们发现了新的磁补偿点，其中自旋磁补偿发生在净自旋磁化为零的情况下，但总磁化强度仍然不为零。对轨道磁矩也观察到类似的补偿。这是第一个记录铁磁薄膜中存在至少四个补偿点——磁、角动量、自旋和轨道，并描述它们之间关系的报告。这些补偿点有望成为自旋电子学技术的关键参数，特别是对垂直磁各向异性、自旋极化、拓扑特性和高速磁响应技术的设计。

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Four compensation points in TbxCo100-x amorphous films

We investigated the temperature and composition dependencies of the magnetic moment in Tb_xCo_100-_x using magnetic Compton scattering and SQUID measurements. We discovered new magnetic compensation points where spin magnetic compensation occurs with zero net spin magnetization, though the total magnetization remains nonzero. A similar compensation was observed for the orbital magnetic moment. This is the first report to document the existence of at least four compensation points—magnetic, angular momentum, spin, and orbital—in ferrimagnetic films and to describe the relationship between them. These compensation points are expected to be key parameters in spintronics technologies, particularly for the design of perpendicular magnetic anisotropy, spin polarization, topological properties, and high-speed magnetic response techniques.

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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.