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Cu NMR study of detwinned single crystals of Ortho-II YBCO6.5

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1016/j.physc.2004.02.010
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FormatText, Article
SubjectNMR; Ortho-II YBCO; Oxygen disorder; Structure
Abstract
Copper NMR has been used as a local probe of the oxygen ordering in Ortho-II YBa2Cu3O6.5 crystals grown in BaZrO3 crucibles. Line assignments have been made to each of the expected crystallographically inequivalent sites. The presence of distinct and narrow lines for these sites as well as the lack of a line known to be associated with oxygen defects indicates that these crystals are highly stoichiometric. Our estimate of the lower limit on the chain length is consistent with that derived from X-ray diffraction measurements. In addition, we have found no evidence for static magnetic moments, in contrast to some previous results.
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  • Physica C: Superconductivity 405, no. 3-4 (15 June 2004): 227–239.
LanguageEnglish
NRC publication
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NPARC number12328650
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Record identifier1dd2ba3a-d25a-4cd7-aaf6-9dcbde065f13
Record created2009-09-10
Record modified2020-04-17
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