Features of Long YBCO Josephson Junctions Fabricated by Preliminary Topology Mask

We present the results of an experimental and theoretical study of YBCO long Josephson junctions on bicrystal YSZ substrates under the influence of an external magnetic field and under the combined action of a magnetic field and microwave radiation. Samples of YBCO films have been fabricated using t...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2018-10, Vol.28 (7), p.1-5
Main Authors: Revin, Leonid S., Pankratov, Andrey L., Masterov, Dmitry V., Parafin, Alexey E., Pavlov, Sergey A., Chiginev, Alexander V., Skorokhodov, Evgeny V.
Format: Article
Language:English
Subjects:
Bicrystals
Critical current density
Critical current density (superconductivity)
Josephson junction
Josephson junctions
Magnetic fields
magnetron sputtering
Microwaves
Shapiro step
Substrates
Superconducting films
synchronization
Topology
YBCO
YBCO superconductors
Yttria-stabilized zirconia
Yttrium barium copper oxide
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Summary:We present the results of an experimental and theoretical study of YBCO long Josephson junctions on bicrystal YSZ substrates under the influence of an external magnetic field and under the combined action of a magnetic field and microwave radiation. Samples of YBCO films have been fabricated using the original technology of a preliminary topology mask, leading to critical current densities of order 0.6 MA · cm -2 at a temperature of 6 K. Detailed measurements of the samples were made in the temperature range of 6-90 K, and the wide variety of subharmonic Shapiro steps has been observed and investigated depending on the magnetic field.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2018.2844354