Abstract
The nonuniform distribution of chemical element ratios in a crystal of nominal composition La3(Ga0.5Ta0.5)Ga5O14 has been determined using X-ray diffraction and X-ray fluorescence mapping on beamline 6.2 of the Kurchatov synchrotron radiation source “KISI-Kurchatov.” The Ga/Ta and La/Ta ratios are shown to increase from the center to the periphery of the crystal growth boule, which is accompanied by an increase in the number of oxygen vacancies leading to a decrease in piezoelectric modulus d11. The study is of practical importance for the creation of materials with desired properties.
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This study was supported by the Russian Foundation for Basic Research, project no. 19-32-90136.
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Gureva, P.V., Marchenkov, N.V., Kuz’micheva, G.M. et al. Synchrotron Study of the Effect of Tantalum Variation on the Piezoelectric Modulus d11 in Langatate Crystal. Crystallogr. Rep. 67, 845–850 (2022). https://doi.org/10.1134/S1063774522060098
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DOI: https://doi.org/10.1134/S1063774522060098