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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2203.13051 |
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| _version_ | 1866929446155452416 |
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| author | 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. |
| author_facet | 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. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2203_13051 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Emergence of electric-field-tunable interfacial ferromagnetism in 2D antiferromagnet heterostructures 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. Materials Science Mesoscale and Nanoscale Physics 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. |
| title | Emergence of electric-field-tunable interfacial ferromagnetism in 2D antiferromagnet heterostructures |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2203.13051 |