Josephson Tunnel Junctions with an Integral Superconductor–Insulator–Normal Metal Shunt

This study is devoted to the investigation of tunneling superconductor–insulator–superconductor (SIS) Josephson junctions with a new type of shunt based on an additional superconductor–insulator–normal metal (SIN) junction placed around the SIS junction. In the course of study, the parameters of suc...

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Bibliographic Details
Published in:Physics of the solid state 2022-05, Vol.64 (5), p.278-282
Main Authors: Shevchenko, M. S., Filippenko, L. V., Kiselev, O. S., Koshelets, V. P.
Format: Article
Language:English
Subjects:
Current voltage characteristics
Josephson junctions
Parameters
Physics
Physics and Astronomy
SIS (superconductors)
Solid State Physics
Superconductors
Tunnel junctions
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Summary:This study is devoted to the investigation of tunneling superconductor–insulator–superconductor (SIS) Josephson junctions with a new type of shunt based on an additional superconductor–insulator–normal metal (SIN) junction placed around the SIS junction. In the course of study, the parameters of such shunted junctions are numerically calculated and their current–voltage characteristics (IVC) are simulated. The designed structures are assembled in real samples and their parameters are studied; the IVC of junctions with different degrees of shunting are measured, and the behavior of these junctions under the influence of high-frequency signals in the subterahertz range is studied.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783422060075