Signature of superconductivity in pressurized La4Ni3O10-x single crystals grown at ambient pressure
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915458541682688 |
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| author | Li, Feiyu Hao, Yinqiao Guo, Ning Zhang, Jian Zheng, Qiang Liu, Guangtao Zhang, Junjie |
| author_facet | Li, Feiyu Hao, Yinqiao Guo, Ning Zhang, Jian Zheng, Qiang Liu, Guangtao Zhang, Junjie |
| contents | Nickelates have attracted enormous attention since the discovery of high-temperature superconductivity in La3Ni2O7 under high pressure. However, whether superconducting nickelate single crystals can be prepared at ambient pressure remains elusive. Here we report signature of superconductivity in pressurized La4Ni3O10-x single crystals grown from potassium carbonate flux at ambient pressure. Single crystal X-ray diffraction and scanning transmission electron microscopy investigations re-vealed high-quality single crystals with perfect stacking of trilayers. Resistivity measurements indicate that the metal-to-metal transition observed at ambient pressure was suppressed under high pressure, and a sharp drop occurred at ~30 K at 77.9 GPa, consistent with superconductivity in pressurized La4Ni3O10 single crystals grown by the floating zone method at an oxygen pressure of >18 bar. Our results not only provide an important path to prepare high-quality nickelate single crystals but also support superconductivity in nickelates under high pressure, promoting more systematic and in-depth research in this compelling field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_13511 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Signature of superconductivity in pressurized La4Ni3O10-x single crystals grown at ambient pressure Li, Feiyu Hao, Yinqiao Guo, Ning Zhang, Jian Zheng, Qiang Liu, Guangtao Zhang, Junjie Superconductivity Materials Science Strongly Correlated Electrons Nickelates have attracted enormous attention since the discovery of high-temperature superconductivity in La3Ni2O7 under high pressure. However, whether superconducting nickelate single crystals can be prepared at ambient pressure remains elusive. Here we report signature of superconductivity in pressurized La4Ni3O10-x single crystals grown from potassium carbonate flux at ambient pressure. Single crystal X-ray diffraction and scanning transmission electron microscopy investigations re-vealed high-quality single crystals with perfect stacking of trilayers. Resistivity measurements indicate that the metal-to-metal transition observed at ambient pressure was suppressed under high pressure, and a sharp drop occurred at ~30 K at 77.9 GPa, consistent with superconductivity in pressurized La4Ni3O10 single crystals grown by the floating zone method at an oxygen pressure of >18 bar. Our results not only provide an important path to prepare high-quality nickelate single crystals but also support superconductivity in nickelates under high pressure, promoting more systematic and in-depth research in this compelling field. |
| title | Signature of superconductivity in pressurized La4Ni3O10-x single crystals grown at ambient pressure |
| topic | Superconductivity Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2501.13511 |