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Fizika Tverdogo Tela, 2019, Volume 61, Issue 9, Pages 1594–1598
DOI: https://doi.org/10.21883/FTT.2019.09.48095.24N (Mi ftt8693) 		 
This article is cited in 3 scientific papers (total in 3 papers)

XXIII International Symposium ''Nanophysics and Nanoelectronics'', Nizhny Novgorod, March 11--14, 2019
Superconductivity

The proximity and Josephson effects in niobium nitride–aluminum bilayers

M. Yu. Levicheva, A. I. Elkinaa, N. N. Bukharovb, Yu. V. Petrovc, A. Yu. Aladyshkinad, D. Yu. Vodolazova, A. M. Klushina

a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
b Nizhny Novgorod Research and Production Association named after M. V. Frunze
c Saint Petersburg State University
d Lobachevsky State University of Nizhny Novgorod
Full-text PDF (330 kB) Citations (3)
DOI: https://doi.org/10.21883/FTT.2019.09.48095.24N
Abstract: Highly disordered thin films of niobium nitride and the specific features of the proximity effect in NbN (S)–aluminum (N) bilayers with a large resistivity ratio, $\rho_{\mathrm{NbN}}/\rho_{\mathrm{Al}}\gg1$, are studied. It is shown that magnetic screening and the critical current Ic of such SN structures significantly increase compared to the S layer. The observed effect is associated with the induced superconductivity in the N layer due to the proximity effect. The Josephson effect is demonstrated in NbN/Al–NbN–NbN/Al variable thickness bridges made of such SN bilayers.
Keywords: Josephson junctions, proximity effect, thin films.
Funding agency Grant number
Russian Science Foundation 15-12-10020
Russian Academy of Sciences - Federal Agency for Scientific Organizations 12
This work was supported by the Russian Science Foundation (grant no. 15-12-10020: Investigation of the Josephson effect in NbN and Al bilayers) and by the Program of the Basic Research of the Presidium of the Russian Academy of Sciences no. 12 “Fundamental problems of high-temperature superconductivity”.
Received: 15.04.2019
Revised: 22.04.2019
Accepted: 24.04.2019
English version:
Physics of the Solid State, 2019, Volume 61, Issue 9, Pages 1544–1548
DOI: https://doi.org/10.1134/S1063783419090142
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. Yu. Levichev, A. I. Elkina, N. N. Bukharov, Yu. V. Petrov, A. Yu. Aladyshkin, D. Yu. Vodolazov, A. M. Klushin, “The proximity and Josephson effects in niobium nitride–aluminum bilayers”, Fizika Tverdogo Tela, 61:9 (2019), 1594–1598; Phys. Solid State, 61:9 (2019), 1544–1548
Citation in format AMSBIB
\Bibitem{LevElkBuk19}
\by M.~Yu.~Levichev, A.~I.~Elkina, N.~N.~Bukharov, Yu.~V.~Petrov, A.~Yu.~Aladyshkin, D.~Yu.~Vodolazov, A.~M.~Klushin
\paper The proximity and Josephson effects in niobium nitride--aluminum bilayers
\jour Fizika Tverdogo Tela
\yr 2019
\vol 61
\issue 9
\pages 1594--1598
\mathnet{http://mi.mathnet.ru/ftt8693}
\crossref{https://doi.org/10.21883/FTT.2019.09.48095.24N}
\elib{https://elibrary.ru/item.asp?id=41130269}
\transl
\jour Phys. Solid State
\yr 2019
\vol 61
\issue 9
\pages 1544--1548
\crossref{https://doi.org/10.1134/S1063783419090142}
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