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Extended x-ray absorption fine structure determination of local structure in sol-gel-derived lead titanate, lead zirconate, and lead zirconate titanate

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Abstract

We report on extended x-ray absorption fine structure (EXAFS) measurements for partially heat-treated gels in the lead zirconate titanate system (PZT). Self-consistent results obtained from the titanium and zirconium K-edges and the lead LIll-edge were used to determine bonding pathways between cations. For lead titantate (PT) and PZT gels, separate networks of predominantly Ti-O-Ti, Zr-O-Zr, and Pb-O-Pb linkages were observed. For lead zirconate (PZ) gels, both Zr-O-Pb and Zr-O-Zr linkages were observed. The results indicate heterogeneity at the molecular level. These findings are discussed in terms of the evolution of structure for PZT materials prepared by our sol-gel method.

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Sengupta, S.S., Ma, L., Adler, D.L. et al. Extended x-ray absorption fine structure determination of local structure in sol-gel-derived lead titanate, lead zirconate, and lead zirconate titanate. Journal of Materials Research 10, 1345–1348 (1995). https://doi.org/10.1557/JMR.1995.1345

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  • DOI: https://doi.org/10.1557/JMR.1995.1345

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