Tunable ferroelectricity in hBN intercalated twisted double-layer graphene
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arXiv
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| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2021
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| Materias: | |
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| _version_ | 1866929328728571904 |
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| author | Wang, Yibo Jiang, Siqi Xiao, Jingkuan Cai, Xiaofan Zhang, Di Wang, Ping Ma, Guodong Han, Yaqing Huang, Jiabei Watanabe, Kenji Taniguchi, Takashi Mayorov, Alexander S. Yu, Geliang |
| author_facet | Wang, Yibo Jiang, Siqi Xiao, Jingkuan Cai, Xiaofan Zhang, Di Wang, Ping Ma, Guodong Han, Yaqing Huang, Jiabei Watanabe, Kenji Taniguchi, Takashi Mayorov, Alexander S. Yu, Geliang |
| contents | Van der Waals (vdW) assembly of two-dimensional materials has been long recognized as a powerful tool to create unique systems with properties that cannot be found in natural compounds. However, among the variety of vdW heterostructures and their various properties, only a few have revealed metallic and ferroelectric behaviour signatures. Here we show ferroelectric semimetal made of double-gated double-layer graphene separated by an atomically thin crystal of hexagonal boron nitride, which demonstrating high room temperature mobility of the order of 10 m$^2$V$^{-1}$s$^{-1}$ and exhibits robust ambipolar switching in response to the external electric field. The observed hysteresis is tunable, reversible and persists above room temperature. Our fabrication method expands the family of ferroelectric vdW compounds and offers a route for developing novel phase-changing devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2102_12398 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Tunable ferroelectricity in hBN intercalated twisted double-layer graphene Wang, Yibo Jiang, Siqi Xiao, Jingkuan Cai, Xiaofan Zhang, Di Wang, Ping Ma, Guodong Han, Yaqing Huang, Jiabei Watanabe, Kenji Taniguchi, Takashi Mayorov, Alexander S. Yu, Geliang Mesoscale and Nanoscale Physics Materials Science Van der Waals (vdW) assembly of two-dimensional materials has been long recognized as a powerful tool to create unique systems with properties that cannot be found in natural compounds. However, among the variety of vdW heterostructures and their various properties, only a few have revealed metallic and ferroelectric behaviour signatures. Here we show ferroelectric semimetal made of double-gated double-layer graphene separated by an atomically thin crystal of hexagonal boron nitride, which demonstrating high room temperature mobility of the order of 10 m$^2$V$^{-1}$s$^{-1}$ and exhibits robust ambipolar switching in response to the external electric field. The observed hysteresis is tunable, reversible and persists above room temperature. Our fabrication method expands the family of ferroelectric vdW compounds and offers a route for developing novel phase-changing devices. |
| title | Tunable ferroelectricity in hBN intercalated twisted double-layer graphene |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2102.12398 |