Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices
Abstract Due to the strong interactions from multiple degrees of freedom at the interfaces, electron-correlated oxide heterostructures have provided a promising platform for creating exotic quantum states. Understanding and controlling the coupling effects at the oxide interface are prerequisites fo...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | NPG Asia Materials |
| Online Access: | https://doi.org/10.1038/s41427-024-00530-2 |
| _version_ | 1797274178797174784 |
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| author | Li Zhe Shi Wenxiao Zhang Jine Zheng Jie Wang Mengqin Zhu ZhaoZhao Han Furong Zhang Hui Xie Liming Yunzhong Chen Fengxia Hu Baogen Shen Yuansha Chen Jirong Sun |
| author_facet | Li Zhe Shi Wenxiao Zhang Jine Zheng Jie Wang Mengqin Zhu ZhaoZhao Han Furong Zhang Hui Xie Liming Yunzhong Chen Fengxia Hu Baogen Shen Yuansha Chen Jirong Sun |
| author_sort | Li Zhe |
| collection | DOAJ |
| description | Abstract Due to the strong interactions from multiple degrees of freedom at the interfaces, electron-correlated oxide heterostructures have provided a promising platform for creating exotic quantum states. Understanding and controlling the coupling effects at the oxide interface are prerequisites for designing emergent interfacial phases with desired functionalities. Here, we report the dimensional control of the interface coupling-induced ferromagnetic (FM) phase in perovskite-CaRuO3/infinite-layered-SrCuO2 superlattices. Structural analysis reveals the occurrence of chain-type to planar-type structural transitions for the SrCuO2 layer as the layer thickness increases. The Hall and magnetoresistance measurements indicate the appearance of an interfacial FM state in the originally paramagnetic CaRuO3 layers when the CaRuO3 layer is in proximity to the chain-type SrCuO2 layers; this superlattice has the highest Curie temperature of ~75 K and perpendicular magnetic anisotropy. Along with the thickness-driven structural transition of the SrCuO2 layers, the interfacial FM order gradually deteriorates and finally disappears. As shown by the X-ray absorption results, the charge transfer at the CaRuO3/chain-SrCuO2 and CaRuO3/plane-SrCuO2 interfaces are different, resulting in dimensional control of the interfacial magnetic state. The results from our study can be used to facilitate a new method to manipulate interface coupling and create emergent interfacial phases in oxide heterostructures. |
| first_indexed | 2024-03-07T14:54:40Z |
| format | Article |
| id | doaj.art-93d3b95e28fa4aa789ce3c47342c2ac7 |
| institution | Directory Open Access Journal |
| issn | 1884-4057 |
| language | English |
| last_indexed | 2024-03-07T14:54:40Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | NPG Asia Materials |
| spelling | doaj.art-93d3b95e28fa4aa789ce3c47342c2ac72024-03-05T19:29:58ZengNature PortfolioNPG Asia Materials1884-40572024-02-011611910.1038/s41427-024-00530-2Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlatticesLi Zhe0Shi Wenxiao1Zhang Jine2Zheng Jie3Wang Mengqin4Zhu ZhaoZhao5Han Furong6Zhang Hui7Xie Liming8Yunzhong Chen9Fengxia Hu10Baogen Shen11Yuansha Chen12Jirong Sun13Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesSchool of Integrated Circuit Science and Engineering, Beihang UniversityBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesSchool of Integrated Circuit Science and Engineering, Beihang UniversitySchool of Integrated Circuit Science and Engineering, Beihang UniversityCAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and TechnologyBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesAbstract Due to the strong interactions from multiple degrees of freedom at the interfaces, electron-correlated oxide heterostructures have provided a promising platform for creating exotic quantum states. Understanding and controlling the coupling effects at the oxide interface are prerequisites for designing emergent interfacial phases with desired functionalities. Here, we report the dimensional control of the interface coupling-induced ferromagnetic (FM) phase in perovskite-CaRuO3/infinite-layered-SrCuO2 superlattices. Structural analysis reveals the occurrence of chain-type to planar-type structural transitions for the SrCuO2 layer as the layer thickness increases. The Hall and magnetoresistance measurements indicate the appearance of an interfacial FM state in the originally paramagnetic CaRuO3 layers when the CaRuO3 layer is in proximity to the chain-type SrCuO2 layers; this superlattice has the highest Curie temperature of ~75 K and perpendicular magnetic anisotropy. Along with the thickness-driven structural transition of the SrCuO2 layers, the interfacial FM order gradually deteriorates and finally disappears. As shown by the X-ray absorption results, the charge transfer at the CaRuO3/chain-SrCuO2 and CaRuO3/plane-SrCuO2 interfaces are different, resulting in dimensional control of the interfacial magnetic state. The results from our study can be used to facilitate a new method to manipulate interface coupling and create emergent interfacial phases in oxide heterostructures.https://doi.org/10.1038/s41427-024-00530-2 |
| spellingShingle | Li Zhe Shi Wenxiao Zhang Jine Zheng Jie Wang Mengqin Zhu ZhaoZhao Han Furong Zhang Hui Xie Liming Yunzhong Chen Fengxia Hu Baogen Shen Yuansha Chen Jirong Sun Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices NPG Asia Materials |
| title | Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices |
| title_full | Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices |
| title_fullStr | Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices |
| title_full_unstemmed | Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices |
| title_short | Dimensional control of interface coupling-induced ferromagnetism in CaRuO3/SrCuO2 superlattices |
| title_sort | dimensional control of interface coupling induced ferromagnetism in caruo3 srcuo2 superlattices |
| url | https://doi.org/10.1038/s41427-024-00530-2 |
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