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Title: Correlation between critical current and resistivity in yba2cu3o7
Authors: Dhalle, M
Boon, Willy
Osquiguil, E
Van Haesendonck, Christian
Bruynseraede, Yvan
Kwarciak, J
Van der Biest, Omer
Issue Date: Dec-1991
Publisher: Elsevier science bv
Series Title: Physica c vol:185 pages:2447-2448
Abstract: Critical current versus temperature measurements were carried out in ceramic YBa2Cu3O7 samples. The samples were all prepared using the same sintering procedure, but starting from powders obtained by different wet and dry methods. All samples showed a linear J(c) vs. T behaviour, typical of Josephson weak-link coupling, with a slope that depends on the preparation method. Using the Ambegaokar-Baratoff relation for J(c), the difference in slopes can be attributed to a change in the characteristic value of the junction resistance. This value turns out to be clearly correlated with the resistivity in the normal state.
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Solid State Physics and Magnetism Section
Physical Metallurgy and Materials Engineering Section (-)

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