Three-dimensional mapping of diffuse scattering in Pb(Zn{sub 1/3}Nb{sub 2/3})O{sub 3}-xPbTiO{sub 3}
- Brookhaven National Laboratory, P.O. Box 5000, Upton, New York 11973 (United States)
High energy (67 keV) x-ray diffuse scattering measurements were performed on single crystals of Pb(Zn{sub 1}/{sub 3}Nb{sub 2}/{sub 3})O{sub 3}-xPbTiO{sub 3} (PZN-xPT), 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 {l_brace}110{r_brace} type planar correlations of the in-plane <110> 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 <110> polarized optic phonon modes.
- OSTI ID:
- 20664942
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 70, Issue 17; Other Information: DOI: 10.1103/PhysRevB.70.174109; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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