Perpendicularly magnetized Mn60Ga40 films on Ge(001) grown at low temperature

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

Journal of Magnetism and Magnetic Materials Pub Date : 2025-07-10 DOI:10.1016/j.jmmm.2025.173338

M. Nishioka , T. Kakutani , T. Kiire , T. Usami , S. Yamada , K. Hamaya

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引用次数: 0

Abstract

Perpendicularly magnetized materials hold significant potential for high density integration of nonvolatile spintronic memories and semiconductor spintronic devices. Here we show a perpendicularly magnetized Mn₆₀Ga₄₀ film grown on a semiconductor Ge at 100

° C

. Using a low-temperature molecular beam epitaxy technique, we finely control the composition of thin Co

_{x}

_{100 - x}

buffer layers for the growth of

L 1_{0}

-Mn₆₀Ga₄₀. We find that an

L 1_{0}

-Mn₆₀Ga₄₀ film with a Co₆₇Fe₃₃/Fe bilayer buffer structure shows perpendicular magnetic properties even on Ge. This study paves the way for perpendicular magnetic tunnel junctions with a low resistance-area product or semiconductor spintronic devices with perpendicularly magnetized spin injector/detector electrodes.

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低温生长在Ge（001）表面的垂直磁化Mn60Ga40薄膜

垂直磁化材料在非易失性自旋电子存储器和半导体自旋电子器件的高密度集成方面具有重要的潜力。在这里，我们展示了一个垂直磁化的Mn60Ga40薄膜生长在半导体锗在100°C。利用低温分子束外延技术，我们精细地控制了用于L10-Mn60Ga40生长的CoxFe100−x薄缓冲层的组成。我们发现具有Co67Fe33/Fe双层缓冲结构的L10-Mn60Ga40薄膜即使在Ge上也具有垂直的磁性。该研究为低阻面积产品的垂直磁隧道结或具有垂直磁化自旋注入/检测器电极的半导体自旋电子器件铺平了道路。

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.