Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5
Abstract Nonreciprocal charge transport phenomena are widely studied in two-dimensional superconductors, which demonstrate unidirectional-anisotropy magnetoresistances as a result of symmetry breaking. Here, we report a strong nonreciprocal transport phenomenon in superconducting CsV3Sb5 thin flakes...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-11-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-022-00516-9 |
| _version_ | 1798044305619681280 |
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| author | Yueshen Wu Qi Wang Xiang Zhou Jinghui Wang Peng Dong Jiadian He Yifan Ding Bolun Teng Yiwen Zhang Yifei Li Chenglong Zhao Hongti Zhang Jianpeng Liu Yanpeng Qi Kenji Watanabe Takashi Taniguchi Jun Li |
| author_facet | Yueshen Wu Qi Wang Xiang Zhou Jinghui Wang Peng Dong Jiadian He Yifan Ding Bolun Teng Yiwen Zhang Yifei Li Chenglong Zhao Hongti Zhang Jianpeng Liu Yanpeng Qi Kenji Watanabe Takashi Taniguchi Jun Li |
| author_sort | Yueshen Wu |
| collection | DOAJ |
| description | Abstract Nonreciprocal charge transport phenomena are widely studied in two-dimensional superconductors, which demonstrate unidirectional-anisotropy magnetoresistances as a result of symmetry breaking. Here, we report a strong nonreciprocal transport phenomenon in superconducting CsV3Sb5 thin flakes. The second harmonic voltages, mainly originating from the rectification effect of vortex motion, are unambiguously developed with in-plane and out-of-plane magnetic fields, and their magnitudes are comparable to those in noncentrosymmetric superconductors. The second harmonic magnetoresistances split into several peaks and some of them reverse their signs by ramping the magnetic field or the current within the superconducting transition. The nonreciprocity suggests a strong asymmetry in CsV3Sb5. The centrosymmetric structure and symmetric electronic phases in CsV3Sb5 can hardly induce the distinct nonreciprocal transport phenomenon, which could be correlated to a symmetry breaking from an unconventional superconducting order parameter symmetry. |
| first_indexed | 2024-04-11T23:01:42Z |
| format | Article |
| id | doaj.art-4aa552c5bd2a4b72b7bf73011a093cb3 |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-04-11T23:01:42Z |
| publishDate | 2022-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-4aa552c5bd2a4b72b7bf73011a093cb32022-12-22T03:58:07ZengNature Portfolionpj Quantum Materials2397-46482022-11-01711810.1038/s41535-022-00516-9Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5Yueshen Wu0Qi Wang1Xiang Zhou2Jinghui Wang3Peng Dong4Jiadian He5Yifan Ding6Bolun Teng7Yiwen Zhang8Yifei Li9Chenglong Zhao10Hongti Zhang11Jianpeng Liu12Yanpeng Qi13Kenji Watanabe14Takashi Taniguchi15Jun Li16School of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversitySchool of Physical Science and Technology, ShanghaiTech UniversityResearch Center for Functional Materials, National Institute for Materials ScienceInternational Center for Materials Nanoarchitectonics, National Institute for Materials ScienceSchool of Physical Science and Technology, ShanghaiTech UniversityAbstract Nonreciprocal charge transport phenomena are widely studied in two-dimensional superconductors, which demonstrate unidirectional-anisotropy magnetoresistances as a result of symmetry breaking. Here, we report a strong nonreciprocal transport phenomenon in superconducting CsV3Sb5 thin flakes. The second harmonic voltages, mainly originating from the rectification effect of vortex motion, are unambiguously developed with in-plane and out-of-plane magnetic fields, and their magnitudes are comparable to those in noncentrosymmetric superconductors. The second harmonic magnetoresistances split into several peaks and some of them reverse their signs by ramping the magnetic field or the current within the superconducting transition. The nonreciprocity suggests a strong asymmetry in CsV3Sb5. The centrosymmetric structure and symmetric electronic phases in CsV3Sb5 can hardly induce the distinct nonreciprocal transport phenomenon, which could be correlated to a symmetry breaking from an unconventional superconducting order parameter symmetry.https://doi.org/10.1038/s41535-022-00516-9 |
| spellingShingle | Yueshen Wu Qi Wang Xiang Zhou Jinghui Wang Peng Dong Jiadian He Yifan Ding Bolun Teng Yiwen Zhang Yifei Li Chenglong Zhao Hongti Zhang Jianpeng Liu Yanpeng Qi Kenji Watanabe Takashi Taniguchi Jun Li Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5 npj Quantum Materials |
| title | Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5 |
| title_full | Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5 |
| title_fullStr | Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5 |
| title_full_unstemmed | Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5 |
| title_short | Nonreciprocal charge transport in topological kagome superconductor CsV3Sb5 |
| title_sort | nonreciprocal charge transport in topological kagome superconductor csv3sb5 |
| url | https://doi.org/10.1038/s41535-022-00516-9 |
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