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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2311.16763 |
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| _version_ | 1866916185262522368 |
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| author | Li, Jingyuan Chen, Cui-Qun Huang, Chaoxin Han, Yifeng Huo, Mengwu Huang, Xing Ma, Peiyue Qiu, Zhengyang Chen, Junfeng Hu, Xunwu Chen, Lan Xie, Tao Shen, Bing Sun, Hualei Yao, Dao-Xin Wang, Meng |
| author_facet | Li, Jingyuan Chen, Cui-Qun Huang, Chaoxin Han, Yifeng Huo, Mengwu Huang, Xing Ma, Peiyue Qiu, Zhengyang Chen, Junfeng Hu, Xunwu Chen, Lan Xie, Tao Shen, Bing Sun, Hualei Yao, Dao-Xin Wang, Meng |
| contents | Atomic structure and electronic band structure are fundamental properties for understanding the mechanism of superconductivity. Motivated by the discovery of pressure-induced high-temperature superconductivity at 80 K in the bilayer Ruddlesden-Popper nickelate La3Ni2O7, the atomic structure and electronic band structure of the trilayer nickelate La4Ni3O10 under pressure up to 44.3 GPa are investigated. A structural transition from the monoclinic P21/a space group to the tetragonal I4/mmm around 12.6-13.4 GPa is identified, accompanying with a drop of resistance below 7 K. Density functional theory calculations suggest that the bonding state of Ni 3dz2 orbital rises and crosses the Fermi level at high pressures, which may give rise to possible superconductivity observed in resistance under pressure in La4Ni3O10. The trilayer nickelate La4Ni3O10 shows some similarities with the bilayer La3Ni2O7 and has unique properties, providing a new platform to investigate the underlying mechanism of superconductivity in nickelates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_16763 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Structural transition, electric transport, and electronic structures in the compressed trilayer nickelate La4Ni3O10 Li, Jingyuan Chen, Cui-Qun Huang, Chaoxin Han, Yifeng Huo, Mengwu Huang, Xing Ma, Peiyue Qiu, Zhengyang Chen, Junfeng Hu, Xunwu Chen, Lan Xie, Tao Shen, Bing Sun, Hualei Yao, Dao-Xin Wang, Meng Superconductivity Atomic structure and electronic band structure are fundamental properties for understanding the mechanism of superconductivity. Motivated by the discovery of pressure-induced high-temperature superconductivity at 80 K in the bilayer Ruddlesden-Popper nickelate La3Ni2O7, the atomic structure and electronic band structure of the trilayer nickelate La4Ni3O10 under pressure up to 44.3 GPa are investigated. A structural transition from the monoclinic P21/a space group to the tetragonal I4/mmm around 12.6-13.4 GPa is identified, accompanying with a drop of resistance below 7 K. Density functional theory calculations suggest that the bonding state of Ni 3dz2 orbital rises and crosses the Fermi level at high pressures, which may give rise to possible superconductivity observed in resistance under pressure in La4Ni3O10. The trilayer nickelate La4Ni3O10 shows some similarities with the bilayer La3Ni2O7 and has unique properties, providing a new platform to investigate the underlying mechanism of superconductivity in nickelates. |
| title | Structural transition, electric transport, and electronic structures in the compressed trilayer nickelate La4Ni3O10 |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2311.16763 |