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Title: Neutron diffuse scattering of (1 − x)(Na0.5Bi0.5)TiO3–xBaTiO3 relaxor ferroelectric single crystals
Authors: Zhang, HW
Deng, G
Studer, AJ
Li, XB
Zhao, X
Luo, H
Keywords: Ferroelectric materials
Temperature dependence
Crystal structure
Bragg curve
Issue Date: 1-Sep-2014
Publisher: Elsevier
Citation: Zhang, H., Deng, G., Studer, A. J., Li, X., Zhao, X., & Luo, H. (2014). Neutron diffuse scattering of (1 − x)(Na0.5Bi0.5)TiO3–xBaTiO3 relaxor ferroelectric single crystals. Scripta Materialia, 86(0), 5-8. doi:10.1016/j.scriptamat.2014.04.011
Abstract: Peculiar L-shaped diffuse streaks along <0 0 1>pc were observed in (Na0.5Bi0.5)TiO3 (NBT) below the Burns temperature, revealing the existence of polar nanoregions (PNRs). The displacement of Bi3+ cations is ∼0.26 Å along <0 0 1>pc in the PNRs, with a size of ∼13 Å in NBT. The BaTiO3 doping drives the diffuse scattering patterns to evolve from the L-shape into an ellipsoidal along <0 1 1 >pc in (Na0.5Bi0.5)TiO3–xBaTiO3. An abnormally large correlation length was observed in the morphotropic phase boundary composition with x = 0.05. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved.
Gov't Doc #: 7580
ISSN: 1359-6462
Appears in Collections:Journal Articles

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