The effect of non-uniform quenching on the surface domain structure of amorphous Fe-based microwires

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-04-05 DOI:10.1016/j.jmmm.2025.173032

O.I. Aksenov , S.I. Bozhko , A.A. Fuks , A.S. Aronin

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引用次数: 0

Abstract

The magnetic domain structure of amorphous Fe_77.5Si_7.5B₁₅ microwires was investigated by magnetic force microscopy. The diameter of the metallic part was 20 µm. It was found that the surface domain layer of uncoated microwires with positive magnetostriction could be divided into two regions: a region containing magnetic domains inclined to the axis or zigzag-shaped domains and a region containing ring domains with a radial orientation of the magnetic moment. It was assumed that that was due to stresses non-uniformly distributed across the cross-section and length of the microwire. The surface domain structure of the microwire was studied after removing the surface part with a thickness of 2 µm. The removal of the surface part resulted in the formation of a magnetic structure that did not have radial components of magnetic stray fields near the sample. When a magnetic field was applied (as in the case of the as-prepared microwires), a stable structure of ring domains with a width of 2.5–5 µm was formed.

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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.