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A muon spin rotation study of hydrogen in YBa2Cu3O y

  • Superconductivity: Interplay with Magnetism Muon Probe Sites
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Abstract

Superconducting YBa2Cu3O y samples were doped with hydrogen and investigated by the muon spin rotation technique. For hydrogen concentrations above a thresholdx, which depends on the oxygen stoichiometry, we find a well defined precession signal in zero external field. This is a clear indication of magnetic ordering in these samples. In samples with a smaller hydrogen content no magnetic ordering was found. For these samples however, the depolarization rate σ(T→0) as measured in a transverse external field depends strongly on the hydrogen content. Our data are consistent with the assumption that hydrogen acts as an electron donor, filling the hole states in YBa2Cu3O y .

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Glückler, H., Niedermayer, C., Nowitzke, G. et al. A muon spin rotation study of hydrogen in YBa2Cu3O y . Hyperfine Interact 63, 155–159 (1991). https://doi.org/10.1007/BF02395998

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  • DOI: https://doi.org/10.1007/BF02395998

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