Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films
Abstract The infinite-layer nickelates, isostructural to the high-T c cuprate superconductors, have emerged as a promising platform to host unconventional superconductivity and stimulated growing interest in the condensed matter community. Despite considerable attention, the superconducting pairing...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-42988-8 |
| _version_ | 1797630137826541568 |
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| author | Haoran Ji Yi Liu Yanan Li Xiang Ding Zheyuan Xie Chengcheng Ji Shichao Qi Xiaoyue Gao Minghui Xu Peng Gao Liang Qiao Yi-feng Yang Guang-Ming Zhang Jian Wang |
| author_facet | Haoran Ji Yi Liu Yanan Li Xiang Ding Zheyuan Xie Chengcheng Ji Shichao Qi Xiaoyue Gao Minghui Xu Peng Gao Liang Qiao Yi-feng Yang Guang-Ming Zhang Jian Wang |
| author_sort | Haoran Ji |
| collection | DOAJ |
| description | Abstract The infinite-layer nickelates, isostructural to the high-T c cuprate superconductors, have emerged as a promising platform to host unconventional superconductivity and stimulated growing interest in the condensed matter community. Despite considerable attention, the superconducting pairing symmetry of the nickelate superconductors, the fundamental characteristic of a superconducting state, is still under debate. Moreover, the strong electronic correlation in the nickelates may give rise to a rich phase diagram, where the underlying interplay between the superconductivity and other emerging quantum states with broken symmetry is awaiting exploration. Here, we study the angular dependence of the transport properties of the infinite-layer nickelate Nd0.8Sr0.2NiO2 superconducting films with Corbino-disk configuration. The azimuthal angular dependence of the magnetoresistance (R(φ)) manifests the rotational symmetry breaking from isotropy to four-fold (C4) anisotropy with increasing magnetic field, revealing a symmetry-breaking phase transition. Approaching the low-temperature and large-magnetic-field regime, an additional two-fold (C2) symmetric component in the R(φ) curves and an anomalous upturn of the temperature-dependent critical field are observed simultaneously, suggesting the emergence of an exotic electronic phase. Our work uncovers the evolution of the quantum states with different rotational symmetries in nickelate superconductors and provides deep insight into their global phase diagram. |
| first_indexed | 2024-03-11T11:03:48Z |
| format | Article |
| id | doaj.art-e54549acbb4d414886e545af20506cbe |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-11T11:03:48Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-e54549acbb4d414886e545af20506cbe2023-11-12T12:23:13ZengNature PortfolioNature Communications2041-17232023-11-011411810.1038/s41467-023-42988-8Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 filmsHaoran Ji0Yi Liu1Yanan Li2Xiang Ding3Zheyuan Xie4Chengcheng Ji5Shichao Qi6Xiaoyue Gao7Minghui Xu8Peng Gao9Liang Qiao10Yi-feng Yang11Guang-Ming Zhang12Jian Wang13International Center for Quantum Materials, School of Physics, Peking UniversityDepartment of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of ChinaInternational Center for Quantum Materials, School of Physics, Peking UniversitySchool of Physics, University of Electronic Science and Technology of ChinaInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversitySchool of Physics, University of Electronic Science and Technology of ChinaInternational Center for Quantum Materials, School of Physics, Peking UniversitySchool of Physics, University of Electronic Science and Technology of ChinaBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesState Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua UniversityInternational Center for Quantum Materials, School of Physics, Peking UniversityAbstract The infinite-layer nickelates, isostructural to the high-T c cuprate superconductors, have emerged as a promising platform to host unconventional superconductivity and stimulated growing interest in the condensed matter community. Despite considerable attention, the superconducting pairing symmetry of the nickelate superconductors, the fundamental characteristic of a superconducting state, is still under debate. Moreover, the strong electronic correlation in the nickelates may give rise to a rich phase diagram, where the underlying interplay between the superconductivity and other emerging quantum states with broken symmetry is awaiting exploration. Here, we study the angular dependence of the transport properties of the infinite-layer nickelate Nd0.8Sr0.2NiO2 superconducting films with Corbino-disk configuration. The azimuthal angular dependence of the magnetoresistance (R(φ)) manifests the rotational symmetry breaking from isotropy to four-fold (C4) anisotropy with increasing magnetic field, revealing a symmetry-breaking phase transition. Approaching the low-temperature and large-magnetic-field regime, an additional two-fold (C2) symmetric component in the R(φ) curves and an anomalous upturn of the temperature-dependent critical field are observed simultaneously, suggesting the emergence of an exotic electronic phase. Our work uncovers the evolution of the quantum states with different rotational symmetries in nickelate superconductors and provides deep insight into their global phase diagram.https://doi.org/10.1038/s41467-023-42988-8 |
| spellingShingle | Haoran Ji Yi Liu Yanan Li Xiang Ding Zheyuan Xie Chengcheng Ji Shichao Qi Xiaoyue Gao Minghui Xu Peng Gao Liang Qiao Yi-feng Yang Guang-Ming Zhang Jian Wang Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films Nature Communications |
| title | Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films |
| title_full | Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films |
| title_fullStr | Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films |
| title_full_unstemmed | Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films |
| title_short | Rotational symmetry breaking in superconducting nickelate Nd0.8Sr0.2NiO2 films |
| title_sort | rotational symmetry breaking in superconducting nickelate nd0 8sr0 2nio2 films |
| url | https://doi.org/10.1038/s41467-023-42988-8 |
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