Bulk Superconductivity in Pressurized Trilayer Nickelate Pr_{4}Ni_{3}O_{10} Single Crystals
The discovery of superconductivity in pressurized bilayer and trilayer nickelates has generated significant interest. However, their superconducting properties are often dependent on sample quality and pressure conditions, complicating the interpretation of the underlying physics. Finding new system...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2025-04-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.15.021008 |
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| Summary: | The discovery of superconductivity in pressurized bilayer and trilayer nickelates has generated significant interest. However, their superconducting properties are often dependent on sample quality and pressure conditions, complicating the interpretation of the underlying physics. Finding new systems with optimized bulk superconducting properties is therefore important for advancing our understanding of these materials. Unlike cuprates, where trilayer compounds typically exhibit the highest transition temperature (T_{c}), the bilayer nickelate La_{3}Ni_{2}O_{7} has thus far outperformed the trilayer La_{4}Ni_{3}O_{10} in reported T_{c}. Whether the trilayer nickelates have achieved the optimal T_{c} remains unclear, with various scenarios suggesting different possibilities. Here, we report the discovery of bulk superconductivity in pressurized Pr_{4}Ni_{3}O_{10} single crystals, achieving a maximum onset T_{c} of 40.5 K at 80.1 GPa, significantly exceeding the 30 K observed in La_{4}Ni_{3}O_{10}. The bulk nature of superconductivity is confirmed by zero resistance and a strong diamagnetic response below T_{c}, with a superconducting volume fraction exceeding 80%. These findings establish trilayer nickelates as genuine bulk high-temperature superconductors, provide new insights into the mechanisms driving superconductivity, and point to a promising route toward further enhancing superconducting properties in nickelates. |
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| ISSN: | 2160-3308 |