Superconducting weak links in YBa2Cu3O7-δ an AC magnetic susceptibility study

J. Garcia, C. Rillo, F. Lera, J. Bartolome, R. Navarro, David H.A. Blank, Jakob Flokstra

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AC magnetic susceptibility, X' and X'', and ac resistivity, ρ, of two different samples of superconducting YBa2Cu3O7-δ have been measured. The results show a strong non-linear behaviour and are very sensitive to the exciting amplitudes. From the analysis of the data and comparison with appropriate models and other superconducting compounds, evidence for the existence of weak superconducting links is inferred. Finally, the utility of acX measurements for detection of different superconducting phases is made evident.
Original languageUndefined
Pages (from-to)L225-L229
JournalJournal of magnetism and magnetic materials
Publication statusPublished - 1987


  • IR-55556

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