Dielectric, piezoelectric and elastic constants of Ca₃TaGa₃Si₂O₁₄ single crystals at elevated temperatures

Yuriy SuhakInstitute of Energy research and Physical Technologies, Clausthal University of Technology, Goslar, GermanyCorrespondence[email protected]

Michal SchulzInstitute of Energy research and Physical Technologies, Clausthal University of Technology, Goslar, Germany

Andrei SotnikovSAWLab Saxony, Leibniz Institute for Solid State and Materials Research, Dresden, Germany

Hagen SchmidtSAWLab Saxony, Leibniz Institute for Solid State and Materials Research, Dresden, Germany

Steffen GanschowLeibniz Institute for Crystal Growth, Berlin, Germany

Sergey SakharovJSC Fomos-Materials, Moscow, Russia

Holger FritzeInstitute of Energy research and Physical Technologies, Clausthal University of Technology, Goslar, Germany

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ABSTRACT

The full set of material parameters for ordered piezoelectric Ca₃TaGa₃Si₂O₁₄ single crystals is presented. Experimental results include dielectric, piezoelectric and elastic constants from room temperature to 900°C. Two independent methods are applied, namely resonant and ultrasonic pulse-echo techniques, which allows to validate the results.

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5. Acknowledgements

Research grant from the German Research Foundation (DFG: FR 1301/21-1 and SO 1085/2-1) made this work possible. H. S. and Yu. S. acknowledge the support from German BMBF (InnoProfile-Transfer 03IPT610Y) and the Energie-Forschungszentrum Niedersachsen, respectively.

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Dielectric, piezoelectric and elastic constants of Ca₃TaGa₃Si₂O₁₄ single crystals at elevated temperatures

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Dielectric, piezoelectric and elastic constants of Ca₃TaGa₃Si₂O₁₄ single crystals at elevated temperatures