Superconductivity in an infinite-layer nickelate superlattice
Abstract Recent observations of superconductivity in infinite-layer nickelates offer insights into high-temperature superconductivity mechanisms. However, defects and dislocations in doped films complicate the realization of superconductivity, limiting current research to superconducting nickelate h...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54660-w |
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| author | Wen Xiao Zhan Yang Shilin Hu Yuzhou He Xiaofei Gao Junhua Liu Zhixiong Deng Yuhao Hong Long Wei Lei Wang Ziyue Shen Tianyang Wang Lin Li Yulin Gan Kai Chen Qinghua Zhang Zhaoliang Liao |
| author_facet | Wen Xiao Zhan Yang Shilin Hu Yuzhou He Xiaofei Gao Junhua Liu Zhixiong Deng Yuhao Hong Long Wei Lei Wang Ziyue Shen Tianyang Wang Lin Li Yulin Gan Kai Chen Qinghua Zhang Zhaoliang Liao |
| author_sort | Wen Xiao |
| collection | DOAJ |
| description | Abstract Recent observations of superconductivity in infinite-layer nickelates offer insights into high-temperature superconductivity mechanisms. However, defects and dislocations in doped films complicate the realization of superconductivity, limiting current research to superconducting nickelate heterostructures. The lack of research on superconductivity in superlattices composed of ultrathin nickelates severely impedes not only the exploration of the interface effect on superconductivity, but also the utilization of heterostructure engineering for exploring higher superconducting temperature T c. Here, we demonstrated superconducting infinite-layer nickelate superlattices [(Nd0.8Sr0.2NiO2)8/(SrTiO3)2]10 via topotactic reduction. Our study uncovered that only above a critical thickness can high-quality superlattices be achieved, with structural formation dependent on nickelate layer thickness. The superconducting superlattice showed a T c of 12.5 K and a 2D superconducting feature, indirectly indicate the intrinsic superconductivity of infinite-layer nickelates. Our study offers promising avenues for delving into the superconducting mechanism and for exploring multilevel interface engineering of infinite-layer nickelates, thus opening new horizons for the study of infinite-layer nickelates. |
| format | Article |
| id | doaj-art-8b9e2f2ce3b64722ae173ad564dbd3d1 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-8b9e2f2ce3b64722ae173ad564dbd3d12024-12-01T12:36:05ZengNature PortfolioNature Communications2041-17232024-11-011511910.1038/s41467-024-54660-wSuperconductivity in an infinite-layer nickelate superlatticeWen Xiao0Zhan Yang1Shilin Hu2Yuzhou He3Xiaofei Gao4Junhua Liu5Zhixiong Deng6Yuhao Hong7Long Wei8Lei Wang9Ziyue Shen10Tianyang Wang11Lin Li12Yulin Gan13Kai Chen14Qinghua Zhang15Zhaoliang Liao16National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesNational Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of ChinaAbstract Recent observations of superconductivity in infinite-layer nickelates offer insights into high-temperature superconductivity mechanisms. However, defects and dislocations in doped films complicate the realization of superconductivity, limiting current research to superconducting nickelate heterostructures. The lack of research on superconductivity in superlattices composed of ultrathin nickelates severely impedes not only the exploration of the interface effect on superconductivity, but also the utilization of heterostructure engineering for exploring higher superconducting temperature T c. Here, we demonstrated superconducting infinite-layer nickelate superlattices [(Nd0.8Sr0.2NiO2)8/(SrTiO3)2]10 via topotactic reduction. Our study uncovered that only above a critical thickness can high-quality superlattices be achieved, with structural formation dependent on nickelate layer thickness. The superconducting superlattice showed a T c of 12.5 K and a 2D superconducting feature, indirectly indicate the intrinsic superconductivity of infinite-layer nickelates. Our study offers promising avenues for delving into the superconducting mechanism and for exploring multilevel interface engineering of infinite-layer nickelates, thus opening new horizons for the study of infinite-layer nickelates.https://doi.org/10.1038/s41467-024-54660-w |
| spellingShingle | Wen Xiao Zhan Yang Shilin Hu Yuzhou He Xiaofei Gao Junhua Liu Zhixiong Deng Yuhao Hong Long Wei Lei Wang Ziyue Shen Tianyang Wang Lin Li Yulin Gan Kai Chen Qinghua Zhang Zhaoliang Liao Superconductivity in an infinite-layer nickelate superlattice Nature Communications |
| title | Superconductivity in an infinite-layer nickelate superlattice |
| title_full | Superconductivity in an infinite-layer nickelate superlattice |
| title_fullStr | Superconductivity in an infinite-layer nickelate superlattice |
| title_full_unstemmed | Superconductivity in an infinite-layer nickelate superlattice |
| title_short | Superconductivity in an infinite-layer nickelate superlattice |
| title_sort | superconductivity in an infinite layer nickelate superlattice |
| url | https://doi.org/10.1038/s41467-024-54660-w |
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