Emergence of electric-field-tunable interfacial ferromagnetism in 2D antiferromagnet heterostructures.
Emergence of electric-field-tunable interfacial ferromagnetism in 2D antiferromagnet heterostructures.
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DOI：
10.1038/s41467-022-34812-6
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发表时间：
2022-12-15
影响因子：
16.6
通讯作者：
Chen, Yong P.
中科院分区：
文献类型：
--
作者：
Cheng, Guanghui;Rahman, Mohammad Mushfiqur;He, Zhiping;Allcca, Andres Llacsahuanga;Rustagi, Avinash;Stampe, Kirstine Aggerbeck;Zhu, Yanglin;Yan, Shaohua;Tian, Shangjie;Mao, Zhiqiang;Lei, Hechang;Watanabe, Kenji;Taniguchi, Takashi;Upadhyaya, Pramey;Chen, Yong P.
货车范德华（vdW）磁体异质结构已成为探索奇异磁序和量子现象的新平台。在这里，我们研究异质结构的层状反铁磁体，CrI3和CrCl3，垂直和面内磁各向异性，分别。使用磁光克尔效应显微镜，我们证明了在CrCl3层接近CrI3的面外磁序，两者之间的铁磁界面耦合。这样的层间交换场导致比单独的CrI3或CrCl3更高的临界温度。我们进一步证明了显着的电场控制的bavity，由于自然打破的结构反转对称性的异质结构，允许前所未有的电场和界面磁性之间的直接耦合。这些发现说明了机会，探索外来的磁相和工程师的vdW异质结自旋电子器件。货车德瓦耳斯材料的一个特别有用的特征是能够将不同材料的联合收割机层组合成单个异质结构，其可以具有比任何单独的组成材料更优越的上级性质。在这里，Cheng等人联合收割机将两种层间反铁磁三卤化铬CrI3和CrCl3紧密结合，并证明了它们之间的铁磁耦合。
Van der Waals (vdW) magnet heterostructures have emerged as new platforms to explore exotic magnetic orders and quantum phenomena. Here, we study heterostructures of layered antiferromagnets, CrI3 and CrCl3, with perpendicular and in-plane magnetic anisotropy, respectively. Using magneto-optical Kerr effect microscopy, we demonstrate out-of-plane magnetic order in the CrCl3 layer proximal to CrI3, with ferromagnetic interfacial coupling between the two. Such an interlayer exchange field leads to higher critical temperature than that of either CrI3 or CrCl3 alone. We further demonstrate significant electric-field control of the coercivity, attributed to the naturally broken structural inversion symmetry of the heterostructure allowing unprecedented direct coupling between electric field and interfacial magnetism. These findings illustrate the opportunity to explore exotic magnetic phases and engineer spintronic devices in vdW heterostructures. One particularly useful feature of van der Waals materials is the ability to combine layers of different materials into a single heterostructure, which can have superior properties than any of the constituent materials alone. Here, Cheng et al. combine two interlayer-antiferromagnetic chromium trihalides, CrI3 and CrCl3 in close proximity, and demonstrate ferromagnetic coupling between them.
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影响因子：
38.3
作者：
Huang, Bevin;Clark, Genevieve;Xu, Xiaodong
通讯作者：
Xu, Xiaodong
影响因子：
3.7
作者：
Lu, Xiaobo;Fei, Ruixiang;Yang, Li
通讯作者：
Yang, Li
DOI：
10.1073/pnas.2000347117
发表时间：
2020-05-19
影响因子：
11.1
作者：
Hejazi, Kasra;Luo, Zhu-Xi;Balents, Leon
通讯作者：
Balents, Leon
影响因子：
19.6
作者：
Cenker, John;Huang, Bevin;Xu, Xiaodong
通讯作者：
Xu, Xiaodong
影响因子：
64.8
作者：
Kezilebieke, Shawulienu;Huda, Nurul;Liljeroth, Peter
通讯作者：
Liljeroth, Peter