Three-dimensional mapping of diffuse scattering in Pb(Zn13Nb23)O3xPbTiO3

Guangyong Xu, Z. Zhong, H. Hiraka, and G. Shirane
Phys. Rev. B 70, 174109 – Published 17 November 2004

Abstract

High energy (67keV) x-ray diffuse scattering measurements were performed on single crystals of Pb(Zn13Nb23)O3xPbTiO3 (PZNxPT), to map out the diffuse scattering distribution in all three dimensions around a large number of Bragg peaks simultaneously. For x=0,4.5%, and 8%, the results are very similar, indicating same type of correlations of polarizations in these compounds. Our results show that the diffuse scattering intensity consists of six ⟨110⟩ rod-type intensities around reciprocal lattice points. A simple model is suggested where {110} type planar correlations of the in-plane 11¯0 type polarizations in real space contribute to the ⟨110⟩ rod-type diffuse intensities in the reciprocal space. The planar correlations of polarizations are likely a result from condensations of soft 11¯0 polarized optic phonon modes.

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  • Received 4 May 2004

DOI:https://doi.org/10.1103/PhysRevB.70.174109

©2004 American Physical Society

Authors & Affiliations

Guangyong Xu1, Z. Zhong1, H. Hiraka1,2, and G. Shirane1

  • 1Brookhaven National Laboratory, P.O. Box 5000, Upton, New York 11973
  • 2Institute for Material Research, Tohoku University, Sendai 980-8577, Japan

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Vol. 70, Iss. 17 — 1 November 2004

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