Open AccessSuperconducting properties of (Y1−xEux)Ba2Cu3Oy-coated conductors prepared via trifluoroacetate–metalorganic deposition
Author(s) -
Motonobu Sato,
K. Nakaoka,
A. Ibi,
T. Machi,
Teruo Izumi
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1293/1/012036
Subject(s) - crystallization , superconductivity , materials science , analytical chemistry (journal) , deposition (geology) , oxygen , critical current , crystallography , condensed matter physics , chemistry , physics , paleontology , organic chemistry , chromatography , sediment , biology
In order to investigate the effect of the partial substitution of Y by Eu on the superconducting properties of REBa 2 Cu 3 O y (RE: rare earth) films, we fabricated trifluoroacetete-metalorganic deposited Y 1- x Eu x Ba 2 Cu 3 O y , ( x = 0.1, 0.23 0.3, 0.4, 0.5) films on metallic substrates with optimal crystallization conditions. The optimized crystallization conditions for fabricating Y 1- x Eu x Ba 2 Cu 3 O y coated conductors with high x composition are relatively high crystallization temperature and low oxygen pressure comparing with YBa 2 Cu 3 O y . The films with high χ exhibit a high critical temperature, irreversible fields, and high critical current density in the high-magnetic region at 77 K. However, the superiority on the critical current density of the films with high χ in self and low fields at 77 K is not necessary conformed. This behavior might be explained by the influence of the melt-growth mode in the film with high x .