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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.11485 |
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| _version_ | 1866916251682471936 |
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| author | Sun, Zhenyu Su, Yueqi Zhi, Aomiao Gao, Zhicheng Han, Xu Wu, Kang Bao, Lihong Huang, Yuan Shi, Youguo Bai, Xuedong Cheng, Peng Chen, Lan Wu, Kehui Tian, Xuezeng Wu, Changzheng Feng, Baojie |
| author_facet | Sun, Zhenyu Su, Yueqi Zhi, Aomiao Gao, Zhicheng Han, Xu Wu, Kang Bao, Lihong Huang, Yuan Shi, Youguo Bai, Xuedong Cheng, Peng Chen, Lan Wu, Kehui Tian, Xuezeng Wu, Changzheng Feng, Baojie |
| contents | Multiferroic materials, which simultaneously exhibit ferroelectricity and magnetism, have attracted substantial attention due to their fascinating physical properties and potential technological applications. With the trends towards device miniaturization, there is an increasing demand for the persistence of multiferroicity in single-layer materials at elevated temperatures. Here, we report high-temperature multiferroicity in single-layer CuCrSe$_2$, which hosts room-temperature ferroelectricity and 120 K ferromagnetism. Notably, the ferromagnetic coupling in single-layer CuCrSe$_2$ is enhanced by the ferroelectricity-induced orbital shift of Cr atoms, which is distinct from both types I and II multiferroicity. These findings are supported by a combination of second-harmonic generation, piezo-response force microscopy, scanning transmission electron microscopy, magnetic, and Hall measurements. Our research provides not only an exemplary platform for delving into intrinsic magnetoelectric interactions at the single-layer limit but also sheds light on potential development of electronic and spintronic devices utilizing two-dimensional multiferroics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_11485 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Evidence for Multiferroicity in Single-Layer CuCrSe$_2$ Sun, Zhenyu Su, Yueqi Zhi, Aomiao Gao, Zhicheng Han, Xu Wu, Kang Bao, Lihong Huang, Yuan Shi, Youguo Bai, Xuedong Cheng, Peng Chen, Lan Wu, Kehui Tian, Xuezeng Wu, Changzheng Feng, Baojie Materials Science Multiferroic materials, which simultaneously exhibit ferroelectricity and magnetism, have attracted substantial attention due to their fascinating physical properties and potential technological applications. With the trends towards device miniaturization, there is an increasing demand for the persistence of multiferroicity in single-layer materials at elevated temperatures. Here, we report high-temperature multiferroicity in single-layer CuCrSe$_2$, which hosts room-temperature ferroelectricity and 120 K ferromagnetism. Notably, the ferromagnetic coupling in single-layer CuCrSe$_2$ is enhanced by the ferroelectricity-induced orbital shift of Cr atoms, which is distinct from both types I and II multiferroicity. These findings are supported by a combination of second-harmonic generation, piezo-response force microscopy, scanning transmission electron microscopy, magnetic, and Hall measurements. Our research provides not only an exemplary platform for delving into intrinsic magnetoelectric interactions at the single-layer limit but also sheds light on potential development of electronic and spintronic devices utilizing two-dimensional multiferroics. |
| title | Evidence for Multiferroicity in Single-Layer CuCrSe$_2$ |
| topic | Materials Science |
| url | https://arxiv.org/abs/2405.11485 |