X-ray magnetic scattering study of three-dimensional magnetic order in the quasi-one-dimensional antiferromagnet Nd{sub 2}BaNiO{sub 5}

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.7216· OSTI ID:383174

Zheludev, A; Hill, J P ^[1]; Buttrey, D J ^[2]

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1. Deptartment of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
2. University of Delaware, Newark, Delaware 19716 (United States)

We report a resonant x-ray-scattering determination of order parameter of the Nd sublattice in the quasi-one-dimensional antiferromagnet, Nd{sub 2}BaNiO{sub 5}. We find that long-range order develops below {ital T}{sub {ital N}}=48 K, and that the staggered magnetization continues to grow down to {ital T}=10 K. This is in contrast with the behavior of the Ni sublattice, which quickly saturates, as determined previously by neutron-scattering. We find this behavior is modeled well by a self-consistent mean-field theory. Large resonant enhancements were obtained at both the Nd {ital L}{sub II} and {ital L}{sub III} absorption edges, with the largest count rates being achieved at the {ital L}{sub II} edge, where structure consistent with magnetic diffraction anomalous fine structure was observed. A double peak observed at the {ital L}{sub III} resonance is also discussed. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Brookhaven National Laboratory
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 383174
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 10 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETIC MATERIALS
BARIUM OXIDES
MAGNETIZATION
NEODYMIUM OXIDES
NICKEL OXIDES
ORDER PARAMETERS
QUATERNARY COMPOUNDS
RESONANCE SCATTERING
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
X-RAY SPECTRA