Impact of chemical etching on stress induced magnetic anisotropy of amorphous microwires

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-09-26 DOI:10.1016/j.jmmm.2025.173547

Somnath Das , Dev Kumar Mahato , Ashis Kumar Panda , Premkumar Murugaiyan , Rajat Kumar Roy

引用次数: 0

Abstract

The investigation explores the influence of chemical etching on the Giant Magneto-Impedance (GMI) properties of microwires, considering variations in their diameters and driving frequencies. The thinner microwire (D₅₀) exhibits the most significant magneto-impedance change compared to the as-quenched microwire (D₇₀). The intriguing physics behind the dual-peak transition phenomenon has been investigated, including the transitions in peak intensities and the transformation from dual peak to a single peak, in relation to the microwire diameter. As the microwire diameter decreases during chemical etching, both the slope (magnetic field sensitivity) and the anisotropy field (<H_k>) exhibit an increasing trend at higher driving frequencies. Thus, the magnetic properties of as-quenched amorphous microwires can be effectively controlled and tuned through chemical etching.

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化学腐蚀对非晶微细线应力诱导磁各向异性的影响

考虑到微导线直径和驱动频率的变化，研究了化学蚀刻对微导线巨磁阻抗（GMI）特性的影响。与淬火微丝（D70）相比，较细的微丝（D50）表现出最显著的磁阻抗变化。研究了双峰跃迁现象背后的有趣物理现象，包括峰值强度的转变和从双峰到单峰的转变，以及与微线直径的关系。随着化学刻蚀过程中微细线直径的减小，在较高的驱动频率下，斜率（磁场灵敏度）和各向异性场（<Hk>）均呈增大趋势。因此，通过化学蚀刻可以有效地控制和调节淬火态非晶微线的磁性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.