Incommensurate magnetism in PrBa2Cu3O6.92

J.P. Hill, A.T. Boothroyd, N.H. Andersen, E. Brecht, T. Wolf

    Research output: Contribution to journalJournal articleResearch


    We report resonant x-ray magnetic scattering and high-resolution neutron-diffraction studies of the Pr site magnetism in high quality single crystals of PrBa2Cu3O6.92. These studies reveal that the Pr sublattice orders at 19 K in a well correlated, long period incommensurate structure with probable wave vector (0.5+/-delta,0.5,0) or (0.5,0.5+/-delta,0) with delta=0.006 r.l.u. The observed x-ray scattering results from dipole transitions, demonstrating the existence of an ordered 5d Pr moment and implying a large 4f moment at the Pr site. A spin reorientation transition to a commensurate antiferromagnetic structure of wave vector (0.5,0.5,0.5) is observed at lower temperatures.
    Original languageEnglish
    JournalPhysical Review B
    Issue number17
    Pages (from-to)11211-11214
    Publication statusPublished - 1998


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