Abstract
Oxygen-deficient YBa2Cu3O6+x samples were investigated by the muon spin rotation technique in zero external field. In an intermediate oxygen concentration region we find strongly relaxing μSR signals indicating the existence of internal magnetic fields. The strongly relaxing signals were observed only in samples with superconducting transition temperatures below 50 K. As an interpretation of the data we suggest that magnetic ordering and superconductivity coexist in these samples within regions of extensions of a few lattice constants, but not necessarily on the same sites.
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Weidinger, A., Niedermayer, C., Glückler, H. et al. Local magnetism in superconducting YBa2Cu3O6+x . Hyperfine Interact 63, 147–153 (1991). https://doi.org/10.1007/BF02395997
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DOI: https://doi.org/10.1007/BF02395997