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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2023, Volume 118, Issue 8, Pages 590–595
DOI: https://doi.org/10.31857/S1234567823200077 (Mi jetpl7065) 		 
CONDENSED MATTER

Influence of the Gd concentration on superconducting properties in second-generation high-temperature superconducting wires

P. N. Degtyarenkoa, A. V. Sadakovb, A. V. Ovcharovc, A. Yu. Degtyarenkob, S. Yu. Gavrilkinb, O. A. Sobolevskiib, A. Yu. Tsvetkovb, B. I. Massalimovb

a Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, 125412 Russia
b Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
c National Research Center Kurchatov Institute, Moscow, 123182 Russia
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DOI: https://doi.org/10.31857/S1234567823200077
Abstract: Systematic studies of second-generation high-temperature superconducting wires with Gd excess relative to the stoichiometric GdBa$_2$Cu$_3$O$_7$ composition are reported. It has been revealed that filamentary defects in the form of non-superconducting Gd$_2$CuO$_4$ phase located along the ab plane are formed during film growth. These inclusions lead to a change in the pinning mechanism of the vortex structure, due to which the peak of the critical current at +15% Gd is clearly observed.
Funding agency Grant number
Russian Science Foundation 22-22-00570
Ministry of Science and Higher Education of the Russian Federation 075-01129-23-00
Magnetic measurements were supported by the Russian Science Foundation (project no. 22-22-00570). Microstructure studies and analysis of the results were supported by the Ministry of Science and Higher Education of the Russian Federation (state assignment no. 075-01129-23-00 for the Joint Institute for High Temperatures, Russian Academy of Sciences).
Received: 24.08.2023
Revised: 13.09.2023
Accepted: 13.09.2023
English version:
Journal of Experimental and Theoretical Physics Letters, 2023, Volume 118, Issue 8, Pages 579–584
DOI: https://doi.org/10.1134/S0021364023602671
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: P. N. Degtyarenko, A. V. Sadakov, A. V. Ovcharov, A. Yu. Degtyarenko, S. Yu. Gavrilkin, O. A. Sobolevskii, A. Yu. Tsvetkov, B. I. Massalimov, “Influence of the Gd concentration on superconducting properties in second-generation high-temperature superconducting wires”, Pis'ma v Zh. Èksper. Teoret. Fiz., 118:8 (2023), 590–595; JETP Letters, 118:8 (2023), 579–584
Citation in format AMSBIB
\Bibitem{DegSadOvc23}
\by P.~N.~Degtyarenko, A.~V.~Sadakov, A.~V.~Ovcharov, A.~Yu.~Degtyarenko, S.~Yu.~Gavrilkin, O.~A.~Sobolevskii, A.~Yu.~Tsvetkov, B.~I.~Massalimov
\paper Influence of the Gd concentration on superconducting properties in second-generation high-temperature superconducting wires
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2023
\vol 118
\issue 8
\pages 590--595
\mathnet{http://mi.mathnet.ru/jetpl7065}
\crossref{https://doi.org/10.31857/S1234567823200077}
\edn{https://elibrary.ru/orhiig}
\transl
\jour JETP Letters
\yr 2023
\vol 118
\issue 8
\pages 579--584
\crossref{https://doi.org/10.1134/S0021364023602671}
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