Highly Tunable Perpendicular Magnetic Anisotropy and Anisotropic Magnetoresistance in Ru-Doped La0.67Sr0.33MnO3 Epitaxial Films

被引：0

作者：

华恩达 ^{[1
]}

戴坤杰 ^{[1
]}

王庆 ^{[1
]}

叶欢 ^{[1
]}

刘宽 ^{[1
]}

章金凤 ^{[1
]}

鲁京迪 ^{[1
]}

刘楷 ^{[1
]}

金锋 ^{[1
]}

王凌飞 ^{[1
]}

吴文彬 ^{[1
,2
]}

机构：

[1] Hefei National Research Center for Physical Sciences at Microscale, University of Science and Technology of China

[2] Collaborative Innovation Center of Advanced Microstructures, Nanjing University

来源：

Chinese Physics Letters | 2023年 / 07期

基金：

中国博士后科学基金; 中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

As a prototypical half-metallic ferromagnet, La0.67Sr0.33MnO3(LSMO) has been extensively studied due to its versatile physical properties and great potential in spintronic applications. However, the weak perpendicular magnetic anisotropy(PMA) limits the controllability and detection of magnetism in LSMO, thus hindering the realization of oxide-based spintronic devices with low energy consumption and high integration level. Motivated by this challenge, we develop an experimental approach to enhance the PMA of LSMO epitaxial films. By cooperatively introducing 4d Ru doping and a moderate compressive strain, the maximum uniaxial magnetic anisotropy in Ru-doped LSMO can reach 3.0 × 105J/m3at 10 K. Furthermore, we find a significant anisotropic magnetoresistance effect in these Ru-doped LSMO films, which is dominated by the strong PMA. Our findings offer an effective pathway to harness and detect the orientations of magnetic moments in LSMO films, thus promoting the feasibility of oxide-based spintronic devices, such as spin valves and magnetic tunnel junctions.

引用

页码：92 / 97

页数：6

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