Interfering Josephson diode effect in Ta2Pd3Te5 asymmetric edge interferometer
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 Ta<sub>2</sub>Pd<sub>3</sub>Te<sub>5</sub> 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.
Authors
- Jiangping Hu (ORCID: https://orcid.org/0000-0002-4837-7742)
- Hong Yu (ORCID: https://orcid.org/0000-0003-0667-8413)
- Zhu‐An Xu (ORCID: https://orcid.org/0000-0001-9290-2762)
- Ziwei Dou (ORCID: https://orcid.org/0000-0001-5591-2750)
- Kun Jiang (ORCID: https://orcid.org/0000-0003-1136-2472)
- Guangtong Liu (ORCID: https://orcid.org/0000-0001-9436-3395)
- Fanming Qu (ORCID: https://orcid.org/0000-0001-6660-9335)
- Haohao Sheng (ORCID: https://orcid.org/0009-0002-0040-5422)
- Dayu Yan (ORCID: https://orcid.org/0000-0001-6484-9968)
- Zhaozheng Lyu (ORCID: https://orcid.org/0000-0002-9608-8048)
- Tian Qian (ORCID: https://orcid.org/0000-0001-8811-4499)
- Jie Shen (ORCID: https://orcid.org/0000-0002-7205-5081)
- Zikang Su (ORCID: https://orcid.org/0000-0002-6691-1662)
- Yupeng Li (ORCID: https://orcid.org/0000-0001-6135-4812)
- Anqi Wang (ORCID: https://orcid.org/0000-0001-6606-7273)
- Zhijun Wang (ORCID: https://orcid.org/0000-0003-2169-8068)
- Xingchen Guo (ORCID: https://orcid.org/0000-0002-3933-9250)
- Li Lü (ORCID: https://orcid.org/0000-0003-2317-1382)
- Youguo Shi (ORCID: https://orcid.org/0000-0002-6610-6989)
- Xiaofan Shi
Institutions
- Chinese Academy of Sciences (CN)
- Hefei University (CN)
- Kavli Institute for Theoretical Sciences (CN)
- Songshan Lake Materials Laboratory (CN)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- Beijing Academy of Quantum Information Sciences (CN)
- Institute of Physics (CN)
- National Laboratory for Superconductivity (CN)
- University of Chinese Academy of Sciences (CN)
- Zhejiang University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1038/s41467-024-53383-2
- Citations
- 9
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 3.04
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- China Postdoctoral Science Foundation
- Beijing Nova Program