Temperature dependent material parameters of Sr3NbGa3Si2O14 (SNGS) single crystal

We have successfully grown high quality piezoelectric single crystal of Sr3NbGa3Si2O14 (SNGS) by the Czochralski technique. Transparent and pale yellow boules of approximately 60 mm in length and 16-18 mm in diameter were obtained. A full set of material parameters including dielectric, elastic and piezoelectric constants of SNGS crystal were measured in a temperature range from 220 K to 310 K Components of the thermal expansion tensor were also determined.