X-ray-scattering study of copper magnetism in nonsuperconducting PrBa2Cu3O6.92

J.P. Hill, D.F. McMorrow, A.T. Boothroyd, A. Stunault, C. Vettier, L.E. Berman, M. von Zimmermann, T. Wolf

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    X-ray magnetic scattering from ordered Cu spins has been observed in a high-T-c compound. The measurements were made on the anomalous cuprate PrBa2Cu3O6.92 with x-ray photon energies tuned in the vicinity of the Cu K edge. The high wave-vector resolution enabled us to observe an incommensurate double-Q Cu spin structure below T-Pr = 19 K that forms as a result of coupling between the magnetically ordered Cu and Pr sublattices. Above T-Pr, the Cu ordering is commensurate, ruling out static spin-charge stripe order as an explanation for the absence of superconductivity in this material.
    Original languageEnglish
    JournalPhysical Review B Condensed Matter
    Volume61
    Issue number2
    Pages (from-to)1251-1255
    ISSN0163-1829
    DOIs
    Publication statusPublished - 2000

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