Incommensurate magnetism in PrBa{sub 2}Cu{sub 3}O{sub 6.92}

Journal Article · Sun Nov 01 04:00:00 EST 1998 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.58.11211· OSTI ID:663726

Hill, J P ^[1]; Boothroyd, A T ^[2]; Andersen, N H ^[3]; Brecht, E ^[4]; Wolf, T ^[5]

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1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Clarendon Laboratory, Oxford University, Oxford OX1 3PU (United Kingdom)
3. Condensed Matter Physics and Chemistry Department, Riso/ National Laboratory, DK-4000 Roskilde (Denmark)
4. Forschungszentrum Karlsruhe, INFP, D-76021 Karlsruhe (Germany)
5. Forschungszentrum Karlsruhe, ITP, D-76021 Karlsruhe (Germany)

We report resonant x-ray magnetic scattering and high-resolution neutron-diffraction studies of the Pr site magnetism in high quality single crystals of PrBa{sub 2}Cu{sub 3}O{sub 6.92}. These studies reveal that the Pr sublattice orders at 19thinspK in a well correlated, long period incommensurate structure with probable wave vector (0.5{plus_minus}{delta},0.5,0) or (0.5,0.5{plus_minus}{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. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 663726
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 58; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
COPPER OXIDES
CRYSTAL-PHASE TRANSFORMATIONS
HIGH-TC SUPERCONDUCTORS
MAGNETISM
NEUTRON DIFFRACTION
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
SPIN