Title :
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
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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0430
