Superconductivity of the hybrid Ruddlesden-Popper La5Ni3O11 single crystals under high pressure
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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
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2025
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| author | Shi, Mengzhu Peng, Di Fan, Kaibao Xing, Zhenfang Yang, Shaohua Wang, Yuzhu Li, Houpu Wu, Rongqi Du, Mei Ge, Binghui Zeng, Zhidan Zeng, Qiaoshi Ying, Jianjun Wu, Tao Chen, Xianhui |
| author_facet | Shi, Mengzhu Peng, Di Fan, Kaibao Xing, Zhenfang Yang, Shaohua Wang, Yuzhu Li, Houpu Wu, Rongqi Du, Mei Ge, Binghui Zeng, Zhidan Zeng, Qiaoshi Ying, Jianjun Wu, Tao Chen, Xianhui |
| contents | The discovery of high-temperature superconductivity in La3Ni2O7 and La4Ni3O10 under high pressure indicates that the Ruddlesden-Popper (RP) phase nickelates Rn+1NinO3n+1 (R = rare earth) is a new material family for high-temperature superconductivity. Exploring the superconductivity of other RP or hybrid RP phase nickelates under high pressure has become an urgent and interesting issue. Here, we report a novel hybrid RP nickelate superconductor of La5Ni3O11. The hybrid RP nickelate La5Ni3O11 is formed by alternative stacking of La3Ni2O7 with n=2 and La2NiO4 with n=1 along the c axis. The transport and magnetic torque measurements indicate a density-wave transition at approximately 170 K near ambient pressure, which is highly similar to both La3Ni2O7 and La4Ni3O10. With increasing pressure, high-pressure transport measurements reveal that the density-wave transition temperature (TDW) continuously increases to approximately 210 K with increasing pressure up to 12 GPa before the appearance of pressure-induced superconductivity, and the density-wave transition abruptly fades out in a first-order manner at approximately 12 GPa. The optimal superconductivity with Tconset = 64 K and Tczero = 54 K is achieved at approximately 21 GPa. On the other hand, high-pressure X-ray diffraction experiments reveal a structural phase transition from an orthorhombic structure to a tetragonal structure at approximately 4.5 GPa. In contrast to La3Ni2O7 and La4Ni3O10, the pressure-induced structural transition has no significant effect on either the density-wave transition or the superconductivity, suggesting a minor role of lattice degree of freedom in La5Ni3O11. The present discovery extends the superconducting member in the RP nickelate family and sheds new light on the superconducting mechanism. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_01018 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Superconductivity of the hybrid Ruddlesden-Popper La5Ni3O11 single crystals under high pressure Shi, Mengzhu Peng, Di Fan, Kaibao Xing, Zhenfang Yang, Shaohua Wang, Yuzhu Li, Houpu Wu, Rongqi Du, Mei Ge, Binghui Zeng, Zhidan Zeng, Qiaoshi Ying, Jianjun Wu, Tao Chen, Xianhui Superconductivity Materials Science Strongly Correlated Electrons The discovery of high-temperature superconductivity in La3Ni2O7 and La4Ni3O10 under high pressure indicates that the Ruddlesden-Popper (RP) phase nickelates Rn+1NinO3n+1 (R = rare earth) is a new material family for high-temperature superconductivity. Exploring the superconductivity of other RP or hybrid RP phase nickelates under high pressure has become an urgent and interesting issue. Here, we report a novel hybrid RP nickelate superconductor of La5Ni3O11. The hybrid RP nickelate La5Ni3O11 is formed by alternative stacking of La3Ni2O7 with n=2 and La2NiO4 with n=1 along the c axis. The transport and magnetic torque measurements indicate a density-wave transition at approximately 170 K near ambient pressure, which is highly similar to both La3Ni2O7 and La4Ni3O10. With increasing pressure, high-pressure transport measurements reveal that the density-wave transition temperature (TDW) continuously increases to approximately 210 K with increasing pressure up to 12 GPa before the appearance of pressure-induced superconductivity, and the density-wave transition abruptly fades out in a first-order manner at approximately 12 GPa. The optimal superconductivity with Tconset = 64 K and Tczero = 54 K is achieved at approximately 21 GPa. On the other hand, high-pressure X-ray diffraction experiments reveal a structural phase transition from an orthorhombic structure to a tetragonal structure at approximately 4.5 GPa. In contrast to La3Ni2O7 and La4Ni3O10, the pressure-induced structural transition has no significant effect on either the density-wave transition or the superconductivity, suggesting a minor role of lattice degree of freedom in La5Ni3O11. The present discovery extends the superconducting member in the RP nickelate family and sheds new light on the superconducting mechanism. |
| title | Superconductivity of the hybrid Ruddlesden-Popper La5Ni3O11 single crystals under high pressure |
| topic | Superconductivity Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2502.01018 |