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Title: Studying the effects of Zr-doping in (Bi0.5Na0.5)TiO3via diffraction and spectroscopy
Authors: Blanchard, PER
Liu, S
Kennedy, BJ
Ling, CD
Zhang, ZM
Issue Date: 1-Jan-2014
Publisher: Royal Society of Chemistry
Citation: Blanchard, P. E. R., Samuel, L., Kennedy, B. J., Ling, C. D., Zhang, Z. M., Avdeev, M., . . . Chen, J. -L. (2014). Studying the effects of Zr-doping in (Bi0.5Na0.5)TiO3 via diffraction and spectroscopy. Dalton Transactions, 43(46), 17358-17365 doi:
Abstract: The structural properties of (Bi0.5Na0.5)Ti1−xZrxO3 (where 0 ≤ x ≤ 0.7) have been investigated using powder diffraction and X-ray absorption spectroscopy. Diffraction measurements on (Bi0.5Na0.5)TiO3 confirm that both monoclinic Cc and rhombohedral R3c phases are present at room temperature. Doping small amounts of Zr into the B site of (Bi0.5Na0.5)TiO3 initially stabilizes the rhombohedral phase before the orthorhombic Pnma phase begins to form at x = 0.5. Analysis of the Ti K-edge and Zr L3-edge XANES spectra show that the crystallographic phase change has very little effect on the local structure of Ti4+/Zr4+ cations, suggesting that there is little change in the cation off-center displacement within the BO6 octahedra with each successive phase change. Published by the PCCP Owner Societies
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