Observation of unconventional van der Waals multiferroics near room temperature
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866917595938029568 |
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| author | Wu, Yangliu Lu, Haipeng Han, Xiaocang Yang, Chendi Liu, Nanshu Zhao, Xiaoxu Qiao, Liang Ji, Wei Che, Renchao Deng, Longjiang Peng, Bo |
| author_facet | Wu, Yangliu Lu, Haipeng Han, Xiaocang Yang, Chendi Liu, Nanshu Zhao, Xiaoxu Qiao, Liang Ji, Wei Che, Renchao Deng, Longjiang Peng, Bo |
| contents | The search for two-dimensional (2D) van der Waals (vdW) multiferroics is an exciting yet challenging endeavor. Room-temperature 2D vdW few-layer multiferroic is a much bigger insurmountable obstacle. Here we report the discovery of an unconventional 2D vdW multiferroic with out-of-plane ferroelectric polarization and long-range magnetic orders in trilayer NiI2 device from 10 K to 295 K. The evolutions of magnetic domains with magnetic field, and the evolutions between ferroelectric and antiferroelectric phase have been unambiguously observed. More significantly, we realize a robust mutual control of magnetism and ferroelectricity at room temperature. The magnetic domains are manipulated by a small voltage ranging from 1 V to 6 V at 0 T and 295 K. This work opens opportunities for exploring multiferroic physics at the limit of few atomic layers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_14300 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Observation of unconventional van der Waals multiferroics near room temperature Wu, Yangliu Lu, Haipeng Han, Xiaocang Yang, Chendi Liu, Nanshu Zhao, Xiaoxu Qiao, Liang Ji, Wei Che, Renchao Deng, Longjiang Peng, Bo Materials Science 14J60 F.2.2; I.2.7 The search for two-dimensional (2D) van der Waals (vdW) multiferroics is an exciting yet challenging endeavor. Room-temperature 2D vdW few-layer multiferroic is a much bigger insurmountable obstacle. Here we report the discovery of an unconventional 2D vdW multiferroic with out-of-plane ferroelectric polarization and long-range magnetic orders in trilayer NiI2 device from 10 K to 295 K. The evolutions of magnetic domains with magnetic field, and the evolutions between ferroelectric and antiferroelectric phase have been unambiguously observed. More significantly, we realize a robust mutual control of magnetism and ferroelectricity at room temperature. The magnetic domains are manipulated by a small voltage ranging from 1 V to 6 V at 0 T and 295 K. This work opens opportunities for exploring multiferroic physics at the limit of few atomic layers. |
| title | Observation of unconventional van der Waals multiferroics near room temperature |
| topic | Materials Science 14J60 F.2.2; I.2.7 |
| url | https://arxiv.org/abs/2311.14300 |