Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films
Abstract To date, the nature of the anomalous metallic state in two-dimensional systems remains unclear. In this study, we present the observation of a quantum superconductor-to-metal transition in underdoped Nd0.85Sr0.15NiO2 infinite-layer superconducting thin films, induced by a magnetic field. Wh...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-08013-2 |
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| author | Ting-Na Shao Chong Sheng Xue-yan Wang Qiang Zhao Fang-Hui Zhu Wen-long Yang Rui-Fen Dou Chang-Min Xiong Hai-Wen Liu Jia-Cai Nie |
| author_facet | Ting-Na Shao Chong Sheng Xue-yan Wang Qiang Zhao Fang-Hui Zhu Wen-long Yang Rui-Fen Dou Chang-Min Xiong Hai-Wen Liu Jia-Cai Nie |
| author_sort | Ting-Na Shao |
| collection | DOAJ |
| description | Abstract To date, the nature of the anomalous metallic state in two-dimensional systems remains unclear. In this study, we present the observation of a quantum superconductor-to-metal transition in underdoped Nd0.85Sr0.15NiO2 infinite-layer superconducting thin films, induced by a magnetic field. When a magnetic field perpendicular to the film is applied, we observed a robust intervening anomalous metallic state, characterized by a saturating resistance at low temperatures. The disappearance of Hall resistance and a huge positive magnetoresistance are the other two characteristics of boson abnormal metal state, just like the resistance tends to be saturated at low temperature. The magnetic field-regulated Nd1-xSrxNiO2 infinite-layer thin films can provide a privileged platform for investigating the details of the anomalous metallic state in a controlled manner. |
| format | Article |
| id | doaj-art-3460d1ddc1744c04bf8f55ee2e9c4e13 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-3460d1ddc1744c04bf8f55ee2e9c4e132025-08-20T04:02:56ZengNature PortfolioScientific Reports2045-23222025-07-011511910.1038/s41598-025-08013-2Anomalous metallic state underdoped infinite-layer nickelate superconducting thin filmsTing-Na Shao0Chong Sheng1Xue-yan Wang2Qiang Zhao3Fang-Hui Zhu4Wen-long Yang5Rui-Fen Dou6Chang-Min Xiong7Hai-Wen Liu8Jia-Cai Nie9Institute of system Engineering, AMS, PLAInstitute of system Engineering, AMS, PLASchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversitySchool of Physics and Astronomy, Beijing Normal UniversityAbstract To date, the nature of the anomalous metallic state in two-dimensional systems remains unclear. In this study, we present the observation of a quantum superconductor-to-metal transition in underdoped Nd0.85Sr0.15NiO2 infinite-layer superconducting thin films, induced by a magnetic field. When a magnetic field perpendicular to the film is applied, we observed a robust intervening anomalous metallic state, characterized by a saturating resistance at low temperatures. The disappearance of Hall resistance and a huge positive magnetoresistance are the other two characteristics of boson abnormal metal state, just like the resistance tends to be saturated at low temperature. The magnetic field-regulated Nd1-xSrxNiO2 infinite-layer thin films can provide a privileged platform for investigating the details of the anomalous metallic state in a controlled manner.https://doi.org/10.1038/s41598-025-08013-2Anomalous metallic stateNd0.85Sr0.15NiO2 infinite-layerSuperconducting thin films |
| spellingShingle | Ting-Na Shao Chong Sheng Xue-yan Wang Qiang Zhao Fang-Hui Zhu Wen-long Yang Rui-Fen Dou Chang-Min Xiong Hai-Wen Liu Jia-Cai Nie Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films Scientific Reports Anomalous metallic state Nd0.85Sr0.15NiO2 infinite-layer Superconducting thin films |
| title | Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films |
| title_full | Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films |
| title_fullStr | Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films |
| title_full_unstemmed | Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films |
| title_short | Anomalous metallic state underdoped infinite-layer nickelate superconducting thin films |
| title_sort | anomalous metallic state underdoped infinite layer nickelate superconducting thin films |
| topic | Anomalous metallic state Nd0.85Sr0.15NiO2 infinite-layer Superconducting thin films |
| url | https://doi.org/10.1038/s41598-025-08013-2 |
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