X-ray-scattering study of copper magnetism in nonsuperconducting PrBa{sub 2}Cu{sub 3}O{sub 6.92}

Journal Article · Sat Jan 01 04:00:00 EST 2000 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.61.1251· OSTI ID:20215091

Hill, J P ^[1]; McMorrow, D F ^[2]; Boothroyd, A T ^[3]; Stunault, A ^[4]; Vettier, C ^[4]; Berman, L E ^[5]; Zimmermann, M v ^[1]; Wolf, Th ^[6]

---

1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Department of Solid State Physics, Risoe National Laboratory, DK-4000, Roskilde, (Denmark)
3. Clarendon Laboratory, Oxford University, Oxford, OX1 3PU, (United Kingdom)
4. European Synchrotron Radiation Facility, Boite Postale 220, 38043 Grenoble Cedex, (France)
5. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11793 (United States)
6. Forschungszentrum Karlsruhe, ITP, D-76021 Karlsruhe, (Germany)

X-ray magnetic scattering from ordered Cu spins has been observed in a high-T{sub c} compound. The measurements were made on the anomalous cuprate PrBa{sub 2}Cu{sub 3}O{sub 6.92} 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{sub Pr}=19 K that forms as a result of coupling between the magnetically ordered Cu and Pr sublattices. Above T{sub Pr}, the Cu ordering is commensurate, ruling out static spin-charge stripe order as an explanation for the absence of superconductivity in this material. (c) 2000 The American Physical Society.

• OSTI ID: 20215091
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 2 Vol. 61; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CRYSTAL-PHASE TRANSFORMATIONS
EXPERIMENTAL DATA
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
PRASEODYMIUM OXIDES
SUPERCONDUCTIVITY
TEMPERATURE RANGE 0013-0065 K
X-RAY DIFFRACTION