Crystal growth and dielectric, piezoelectric and elastic properties of Ca3TaGa3Si2O14 single crystal

Single crystals of Ca3TaGa3Si2O14 (CTGS) were successfully grown from stoichiometric melts by the conventional Czochralski technique. The relative dielectric constants, the piezoelectric strain constants and the elastic compliance constants of CTGS single crystal have been determined by an electric bridge and resonance–antiresonance method. At room temperature, the two piezoelectric strain constants d11d11 and d14d14 are −4.58×10−12 coulombs per newton (C/N) and 10.43×10−12 coulombs per newton (C/N), respectively. The velocities of the bulk acoustic wave are also calculated.