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| Format: | Preprint |
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2025
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| Online-Zugang: | https://arxiv.org/abs/2508.01241 |
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| _version_ | 1866912516212260864 |
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| author | Liu, Xiangqi Xu, Chen Jiang, Jing Wang, Haonan Liu, Shaobo Liu, Gan Zhu, Ziyi Yuan, Jian Xia, Wei Wen, Lianbing Luo, Jiawei Luo, Yixuan Wang, Xia Yu, Na Cheng, Peihong Chen, Leiming Zhou, Rui Li, Jun Chen, Yulin Wu, Shiwei Qu, Ke Li, Wei Zhang, Guangming Duan, Chungang Chen, Jianhao Xi, Xiaoxiang Yang, Zhenzhong Liu, Kai Guo, Yanfeng |
| author_facet | Liu, Xiangqi Xu, Chen Jiang, Jing Wang, Haonan Liu, Shaobo Liu, Gan Zhu, Ziyi Yuan, Jian Xia, Wei Wen, Lianbing Luo, Jiawei Luo, Yixuan Wang, Xia Yu, Na Cheng, Peihong Chen, Leiming Zhou, Rui Li, Jun Chen, Yulin Wu, Shiwei Qu, Ke Li, Wei Zhang, Guangming Duan, Chungang Chen, Jianhao Xi, Xiaoxiang Yang, Zhenzhong Liu, Kai Guo, Yanfeng |
| contents | Superconductivity in the two-dimensional (2D) limit is a fertile ground for exotic quantum phenomena-many of which remain elusive in their 3D counterparts. While studies of 2D superconductivity have predominantly focused on mono- or few-layer systems, we demonstrate an alternative route-interlayer sliding in bulk crystals. Through a precisely controlled growth strategy, we engineer interlayer sliding in bulk 3R-NbSe2, deliberately disrupting [001] mirror symmetry and drastically suppressing interlayer coupling. Remarkably, this structural manipulation stabilizes Ising-type superconductivity coexisting with an unconventional charge-density-wave (CDW) state akin to that of monolayer 2H-NbSe2. The sliding phase exhibits a pronounced suppression of the upper critical field at low temperatures, revealing a delicate competition between Ising and Rashba spin-orbit coupling (SOC) in the globally noncentrosymmetric lattice. Intriguingly, the superconducting state displays two-fold symmetry, a signature that may arise from asymmetric SOC or a multi-component pairing order parameter. Our work establishes interlayer sliding as a symmetry-breaking tool to promote 2D superconductivity in bulk materials-without resorting to extrinsic intercalation or doping. More broadly, this approach sets a paradigm for unlocking hidden quantum states in layered materials, offering a new dimension in design of quantum matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_01241 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sliding two-dimensional superconductivity and charge-density-wave state in a bulk crystal Liu, Xiangqi Xu, Chen Jiang, Jing Wang, Haonan Liu, Shaobo Liu, Gan Zhu, Ziyi Yuan, Jian Xia, Wei Wen, Lianbing Luo, Jiawei Luo, Yixuan Wang, Xia Yu, Na Cheng, Peihong Chen, Leiming Zhou, Rui Li, Jun Chen, Yulin Wu, Shiwei Qu, Ke Li, Wei Zhang, Guangming Duan, Chungang Chen, Jianhao Xi, Xiaoxiang Yang, Zhenzhong Liu, Kai Guo, Yanfeng Superconductivity Superconductivity in the two-dimensional (2D) limit is a fertile ground for exotic quantum phenomena-many of which remain elusive in their 3D counterparts. While studies of 2D superconductivity have predominantly focused on mono- or few-layer systems, we demonstrate an alternative route-interlayer sliding in bulk crystals. Through a precisely controlled growth strategy, we engineer interlayer sliding in bulk 3R-NbSe2, deliberately disrupting [001] mirror symmetry and drastically suppressing interlayer coupling. Remarkably, this structural manipulation stabilizes Ising-type superconductivity coexisting with an unconventional charge-density-wave (CDW) state akin to that of monolayer 2H-NbSe2. The sliding phase exhibits a pronounced suppression of the upper critical field at low temperatures, revealing a delicate competition between Ising and Rashba spin-orbit coupling (SOC) in the globally noncentrosymmetric lattice. Intriguingly, the superconducting state displays two-fold symmetry, a signature that may arise from asymmetric SOC or a multi-component pairing order parameter. Our work establishes interlayer sliding as a symmetry-breaking tool to promote 2D superconductivity in bulk materials-without resorting to extrinsic intercalation or doping. More broadly, this approach sets a paradigm for unlocking hidden quantum states in layered materials, offering a new dimension in design of quantum matter. |
| title | Sliding two-dimensional superconductivity and charge-density-wave state in a bulk crystal |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2508.01241 |