Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates

R. Vedrinskiǐ, E. Nazarenko, M. Lemeshko, V. Nassif, O. Proux, A. Novakovich, Y. Joly, Physical Review B - Condensed Matter and Materials Physics 73 (2006).

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Abstract
Temperature dependent preedge and extended x-ray absorption fine structure measurements at the Zr K edge for the perovskite-type zirconates Pb Zr0.515 Ti0.485 O3 (PZT), PbZr O3 (PZ), and BaZr O3 are performed. To carry out a more accurate study of the weak reconstruction of the local atomic structure we employed a combination of two techniques: (i) analysis of the preedge fine structure, and (ii) analysis of the Fourier transform of the difference between χ (k) functions obtained at different temperatures. A detailed investigation of local atomic structure in the cubic phase for all the crystals is also performed. It is shown that neither the displacive nor the order-disorder model can describe correctly the changes of local atomic structure during phase transitions in PZ and PZT. A spherical model describing the local atomic structure of perovskite-type crystals suffering structural phase transitions is proposed.
Publishing Year
Date Published
2006-04-17
Journal Title
Physical Review B - Condensed Matter and Materials Physics
Acknowledgement
The studies were supported by the Russian Ministry of Science and Education Grant No. R662. E.N. acknowledges partial support from the French Government *CNOUS.
Volume
73
Issue
13
IST-REx-ID

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Vedrinskiǐ R, Nazarenko E, Lemeshko M, et al. Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates. Physical Review B - Condensed Matter and Materials Physics. 2006;73(13). doi:10.1103/PhysRevB.73.134109
Vedrinskiǐ, R., Nazarenko, E., Lemeshko, M., Nassif, V., Proux, O., Novakovich, A., & Joly, Y. (2006). Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates. Physical Review B - Condensed Matter and Materials Physics, 73(13). https://doi.org/10.1103/PhysRevB.73.134109
Vedrinskiǐ, Rostislav, Elena Nazarenko, Mikhail Lemeshko, Vivian Nassif, Olivier Proux, Alexander Novakovich, and Yves Joly. “Temperature Dependent XAFS Studies of Local Atomic Structure of the Perovskite-Type Zirconates.” Physical Review B - Condensed Matter and Materials Physics 73, no. 13 (2006). https://doi.org/10.1103/PhysRevB.73.134109.
R. Vedrinskiǐ et al., “Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates,” Physical Review B - Condensed Matter and Materials Physics, vol. 73, no. 13, 2006.
Vedrinskiǐ R, Nazarenko E, Lemeshko M, Nassif V, Proux O, Novakovich A, Joly Y. 2006. Temperature dependent XAFS studies of local atomic structure of the perovskite-type zirconates. Physical Review B - Condensed Matter and Materials Physics. 73(13).
Vedrinskiǐ, Rostislav, et al. “Temperature Dependent XAFS Studies of Local Atomic Structure of the Perovskite-Type Zirconates.” Physical Review B - Condensed Matter and Materials Physics, vol. 73, no. 13, American Physical Society, 2006, doi:10.1103/PhysRevB.73.134109.

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