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Title: Detection of charge scattering associated with stripe order in La{sub 1.775}Sr{sub 0.225}NiO{sub 4} by hard-x-ray diffraction

Abstract

In the past few years neutron-scattering experiments have shown very intriguing stripe correlations of spins and holes in hole-doped La{sub 2}NiO{sub 4} and La{sub 2}CuO{sub 4}. As yet, no x-ray-diffraction experiment has confirmed the neutron results and the topic is still controversial. In this paper we report the observation of stripe correlations of holes by x-ray diffraction. The experiments were performed in Laue geometry at the hard-x-ray beamline BW5 at HASYLAB on a crystal of La{sub 1.775}Sr{sub 0.225}NiO{sub 4} which was previously studied by neutron diffraction. Temperature dependences of the intensities and wave vectors of the charge-density-modulation peaks were characterized and found to be in good agreement with the neutron-scattering results. Interestingly, weak, temperature-dependent scattering was also observed at positions consistent with nonresonant x-ray magnetic scattering from the spin correlations; however, a definitive determination of its origin remains lacking. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
 [1]; ;  [2]; ; ;  [3];  [4]; ;  [5]
  1. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)|[Physics Department, State University of New York at Stony Brook, Stony Brook, New York 11794 (United States)
  2. Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, D-22603 Hamburg (Germany)
  3. Department of Solid State Physics, Riso/ National Laboratory, DK-4000 Roskilde (Denmark)
  4. Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716 (United States)
  5. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
632607
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 56; Journal Issue: 13; Other Information: PBD: Oct 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LANTHANUM OXIDES; CHARGE DENSITY; NICKEL OXIDES; STRONTIUM OXIDES; X-RAY DIFFRACTION; TEMPERATURE DEPENDENCE; SPIN; MAGNETIC PROPERTIES

Citation Formats

Vigliante, A., von Zimmermann, M., Schneider, J.R., Frello, T., Andersen, N.H., Madsen, J., Buttrey, D.J., Gibbs, D., and Tranquada, J.M. Detection of charge scattering associated with stripe order in La{sub 1.775}Sr{sub 0.225}NiO{sub 4} by hard-x-ray diffraction. United States: N. p., 1997. Web. doi:10.1103/PhysRevB.56.8248.
Vigliante, A., von Zimmermann, M., Schneider, J.R., Frello, T., Andersen, N.H., Madsen, J., Buttrey, D.J., Gibbs, D., & Tranquada, J.M. Detection of charge scattering associated with stripe order in La{sub 1.775}Sr{sub 0.225}NiO{sub 4} by hard-x-ray diffraction. United States. doi:10.1103/PhysRevB.56.8248.
Vigliante, A., von Zimmermann, M., Schneider, J.R., Frello, T., Andersen, N.H., Madsen, J., Buttrey, D.J., Gibbs, D., and Tranquada, J.M. Wed . "Detection of charge scattering associated with stripe order in La{sub 1.775}Sr{sub 0.225}NiO{sub 4} by hard-x-ray diffraction". United States. doi:10.1103/PhysRevB.56.8248.
@article{osti_632607,
title = {Detection of charge scattering associated with stripe order in La{sub 1.775}Sr{sub 0.225}NiO{sub 4} by hard-x-ray diffraction},
author = {Vigliante, A. and von Zimmermann, M. and Schneider, J.R. and Frello, T. and Andersen, N.H. and Madsen, J. and Buttrey, D.J. and Gibbs, D. and Tranquada, J.M.},
abstractNote = {In the past few years neutron-scattering experiments have shown very intriguing stripe correlations of spins and holes in hole-doped La{sub 2}NiO{sub 4} and La{sub 2}CuO{sub 4}. As yet, no x-ray-diffraction experiment has confirmed the neutron results and the topic is still controversial. In this paper we report the observation of stripe correlations of holes by x-ray diffraction. The experiments were performed in Laue geometry at the hard-x-ray beamline BW5 at HASYLAB on a crystal of La{sub 1.775}Sr{sub 0.225}NiO{sub 4} which was previously studied by neutron diffraction. Temperature dependences of the intensities and wave vectors of the charge-density-modulation peaks were characterized and found to be in good agreement with the neutron-scattering results. Interestingly, weak, temperature-dependent scattering was also observed at positions consistent with nonresonant x-ray magnetic scattering from the spin correlations; however, a definitive determination of its origin remains lacking. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevB.56.8248},
journal = {Physical Review, B: Condensed Matter},
number = 13,
volume = 56,
place = {United States},
year = {1997},
month = {10}
}