Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer
Abstract Edge states in topological systems have attracted great interest due to their robustness and linear dispersions. Here a superconducting-proximitized edge interferometer is engineered on a topological insulator Ta2Pd3Te5 with asymmetric edges to realize the interfering Josephson diode effect...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-10-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-53383-2 |
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| author | Yupeng Li Dayu Yan Yu Hong Haohao Sheng Anqi Wang Ziwei Dou Xingchen Guo Xiaofan Shi Zikang Su Zhaozheng Lyu Tian Qian Guangtong Liu Fanming Qu Kun Jiang Zhijun Wang Youguo Shi Zhu-An Xu Jiangping Hu Li Lu Jie Shen |
| author_facet | Yupeng Li Dayu Yan Yu Hong Haohao Sheng Anqi Wang Ziwei Dou Xingchen Guo Xiaofan Shi Zikang Su Zhaozheng Lyu Tian Qian Guangtong Liu Fanming Qu Kun Jiang Zhijun Wang Youguo Shi Zhu-An Xu Jiangping Hu Li Lu Jie Shen |
| author_sort | Yupeng Li |
| collection | DOAJ |
| description | Abstract Edge states in topological systems have attracted great interest due to their robustness and linear dispersions. Here a superconducting-proximitized edge interferometer is engineered on a topological insulator Ta2Pd3Te5 with asymmetric edges to realize the interfering Josephson diode effect (JDE), which hosts many advantages, such as the high efficiency as much as 73% at tiny applied magnetic fields with an ultra-low switching power around picowatt. As an important element to induce such JDE, the second-order harmonic in the current-phase relation is also experimentally confirmed by half-integer Shapiro steps. The interfering JDE is also accompanied by the antisymmetric second harmonic transport, which indicates the corresponding asymmetry in the interferometer, as well as the polarity of JDE. This edge interferometer offers an effective method to enhance the performance of JDE, and boosts great potential applications for future superconducting quantum devices. |
| format | Article |
| id | doaj-art-9c83defa41254f2fb2ba59c122dd01bd |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-9c83defa41254f2fb2ba59c122dd01bd2025-08-20T02:17:50ZengNature PortfolioNature Communications2041-17232024-10-011511910.1038/s41467-024-53383-2Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometerYupeng Li0Dayu Yan1Yu Hong2Haohao Sheng3Anqi Wang4Ziwei Dou5Xingchen Guo6Xiaofan Shi7Zikang Su8Zhaozheng Lyu9Tian Qian10Guangtong Liu11Fanming Qu12Kun Jiang13Zhijun Wang14Youguo Shi15Zhu-An Xu16Jiangping Hu17Li Lu18Jie Shen19Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesSchool of Physics, Zhejiang UniversityBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesAbstract Edge states in topological systems have attracted great interest due to their robustness and linear dispersions. Here a superconducting-proximitized edge interferometer is engineered on a topological insulator Ta2Pd3Te5 with asymmetric edges to realize the interfering Josephson diode effect (JDE), which hosts many advantages, such as the high efficiency as much as 73% at tiny applied magnetic fields with an ultra-low switching power around picowatt. As an important element to induce such JDE, the second-order harmonic in the current-phase relation is also experimentally confirmed by half-integer Shapiro steps. The interfering JDE is also accompanied by the antisymmetric second harmonic transport, which indicates the corresponding asymmetry in the interferometer, as well as the polarity of JDE. This edge interferometer offers an effective method to enhance the performance of JDE, and boosts great potential applications for future superconducting quantum devices.https://doi.org/10.1038/s41467-024-53383-2 |
| spellingShingle | Yupeng Li Dayu Yan Yu Hong Haohao Sheng Anqi Wang Ziwei Dou Xingchen Guo Xiaofan Shi Zikang Su Zhaozheng Lyu Tian Qian Guangtong Liu Fanming Qu Kun Jiang Zhijun Wang Youguo Shi Zhu-An Xu Jiangping Hu Li Lu Jie Shen Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer Nature Communications |
| title | Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer |
| title_full | Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer |
| title_fullStr | Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer |
| title_full_unstemmed | Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer |
| title_short | Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer |
| title_sort | interfering josephson diode effect in ta2pd3te5 asymmetric edge interferometer |
| url | https://doi.org/10.1038/s41467-024-53383-2 |
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