Enhancing the half-metallicity of equiatomic quaternary Heusler compound OsZrTiSi via atomic doping

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-09-23 DOI:10.1016/j.jmmm.2025.173517

Xiao-Wei Sun, Hao Wu, Shuang-Gang Xu, Ting Song, Zi-Jiang Liu

引用次数: 0

Abstract

The quaternary Heusler alloy OsZrTiSi has been proven to be a half-metallic ferromagnet. However, the Curie temperature of OsZrTiSi does not exceed room temperature, which limits its applications. The Curie temperature is increased by doping vanadium atoms, and compounds with the desired magnetic moment are obtained in this work. Vanadium (V) and Titanium (Ti) belong to the same period. By substituting V for Ti atoms, compounds with tailored magnetic moments can be obtained, thereby enabling magnetic property tuning. In addition, the Curie temperatures of OsZrTi_nV_1-nSi (n = 0.25, 0.5, 0.75, 1.0) obtained after doping are 430.3 K, 475.5 K, 520.8 K and 566 K respectively, all of which are higher than room temperature. This study provides a new approach for the design of multifunctional novel Heusler alloys.

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原子掺杂提高等原子四元Heusler化合物OsZrTiSi的半金属丰度

四元Heusler合金OsZrTiSi已被证明是半金属铁磁铁。然而，OsZrTiSi的居里温度不超过室温，限制了它的应用。通过钒原子的掺杂提高了居里温度，得到了具有理想磁矩的化合物。钒(V)和钛（Ti）属于同一时期。通过将V原子取代Ti原子，可以获得具有定制磁矩的化合物，从而实现磁性调谐。此外，掺杂后得到的OsZrTinV1-nSi （n = 0.25、0.5、0.75、1.0）的居里温度分别为430.3 K、475.5 K、520.8 K和566 K，均高于室温。该研究为多功能新型Heusler合金的设计提供了新的途径。

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.