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

Abstract

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.}

Authors:
;  [1];  [2]
  1. Deptartment of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
  2. University of Delaware, Newark, Delaware 19716 (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
383174
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 54; Journal Issue: 10; Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETIC MATERIALS; ORDER PARAMETERS; NEODYMIUM OXIDES; BARIUM OXIDES; NICKEL OXIDES; QUATERNARY COMPOUNDS; MAGNETIZATION; X-RAY SPECTRA; RESONANCE SCATTERING; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K

Citation Formats

Zheludev, A, Hill, J P, and Buttrey, D J. X-ray magnetic scattering study of three-dimensional magnetic order in the quasi-one-dimensional antiferromagnet Nd{sub 2}BaNiO{sub 5}. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.54.7216.
Zheludev, A, Hill, J P, & Buttrey, D J. X-ray magnetic scattering study of three-dimensional magnetic order in the quasi-one-dimensional antiferromagnet Nd{sub 2}BaNiO{sub 5}. United States. doi:10.1103/PhysRevB.54.7216.
Zheludev, A, Hill, J P, and Buttrey, D J. Sun . "X-ray magnetic scattering study of three-dimensional magnetic order in the quasi-one-dimensional antiferromagnet Nd{sub 2}BaNiO{sub 5}". United States. doi:10.1103/PhysRevB.54.7216.
@article{osti_383174,
title = {X-ray magnetic scattering study of three-dimensional magnetic order in the quasi-one-dimensional antiferromagnet Nd{sub 2}BaNiO{sub 5}},
author = {Zheludev, A and Hill, J P and Buttrey, D J},
abstractNote = {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.}},
doi = {10.1103/PhysRevB.54.7216},
journal = {Physical Review, B: Condensed Matter},
number = 10,
volume = 54,
place = {United States},
year = {1996},
month = {9}
}