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Title: Homointerface planar Josephson junction based on inverse proximity effect
Authors: Fan, Juewen
Jiang, Bingyan
Zhao, Jiaji
Bi, Ran
Zhou, Jiadong
Liu, Zheng
Kang, Ning
Qu, Fanming
Lu, Li
Wu, Xiaosong
Keywords: Engineering::Materials
Issue Date: 2022
Source: Fan, J., Jiang, B., Zhao, J., Bi, R., Zhou, J., Liu, Z., Kang, N., Qu, F., Lu, L. & Wu, X. (2022). Homointerface planar Josephson junction based on inverse proximity effect. Journal of Applied Physics, 131(9), 093903-.
Journal: Journal of Applied Physics 
Abstract: The quality of a superconductor-normal metal-superconductor Josephson junction (JJ) depends crucially on the transparency of the superconductor-normal metal (S/N) interface. We demonstrate a technique for fabricating planar JJs with perfect S/N interfaces. The technique utilizes a strong inverse proximity effect discovered in Al/V$_5$S$_8$ bilayers, by which the Al layer is driven into the resistive state. The highly transparent S/N homointerface and the peculiar normal metal enable the flow of Josephson supercurrent across a 2.9 $\mu$m long weak link. Moreover, our JJ exhibits a giant critical current and a large product of the critical current and the normal state resistance.
ISSN: 0021-8979
DOI: 10.1063/5.0076861
Schools: School of Materials Science and Engineering 
Rights: © 2022 Author(s). All rights reserved. This paper was published by AIP Publishing in Journal of Applied Physics and is made available with permission of Author(s).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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