Antiferromagnetic ordering in superconducting YBa2Cu3O6.5

Y. Sidis, C. Ulrich, P. Bourges, C. Bernhard, C. Niedermayer, L.P. Regnault, N.H. Andersen, B. Keimer

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Commensurate antiferromagnetic ordering has been observed in the superconducting high-T-c. cuprate YBa2Cu3O6.5 (T-c = 55 K) by polarized and unpolarized elastic neutron scattering. The magnetic peak intensity exhibits a marked enhancement at T-c. Zero-field muon-spin-resonance experiments demonstrate that the staggered magnetization is not truly static but fluctuates on a nanosecond time scale. These results point towards an unusual spin density wave state coexisting with superconductivity.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume86
    Issue number18
    Pages (from-to)4100-4103
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2001

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