Material parameters of Ca3TaGa3Si2O14 single crystal revisited

Author

Sotnikov, A. ; Schmidt, Heidemarie ; Weihnacht, M. ; Buzanov, O. ; Sakharov, S.

Author_Institution

IFW Dresden (Leibniz Inst. for Solid State & Mater. Res. Dresden), Dresden, Germany

fYear

2013

fDate

21-25 July 2013

Firstpage

1688

Lastpage

1691

Abstract

We have successfully grown high quality large size piezoelectric single crystals of Ca₃TaGa₃Si₂O₁₄ (CTGS) by the Czochralski technique. The elastic material constants were derived from bulk- and surface acoustic wave measurements. Starting with the elastic constants determined from BAWs we optimized the data set by measuring SAW velocities as a function of propagation angle. Dielectric and piezoelectric constants were also obtained.

Keywords

acoustic wave propagation; calcium compounds; crystal growth from melt; elastic constants; gallium compounds; optimisation; permittivity; piezoelectricity; surface acoustic waves; tantalum compounds; Ca₃TaGa₃Si₂O₁₄; Czochralski technique; SAW velocities; bulk-acoustic wave measurement; data set; dielectric constant; elastic material constants; high quality large size piezoelectric single crystals; material parameters; optimization; piezoelectric constant; propagation angle; surface acoustic wave measurement; Acoustic measurements; Crystals; Dielectric measurement; Measurement by laser beam; Surface acoustic waves; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2013 IEEE International

Conference_Location

Prague

ISSN

1948-5719

Print_ISBN

978-1-4673-5684-8

Type

conf

DOI

10.1109/ULTSYM.2013.0430

Filename

6725071