Single crystals in the BiScO3-PbTiO3 (BSPT) system were grown using the conventional high temperature solution method. The dielectric, piezoelectric and electromechanical properties along 〈110〉 direction were investigated as a function of temperature. The Curie temperature was found to be ∼380°C with a rhombohedral-tetragonal phase transformation temperature (TR-T) at 300°C. The coercive field for (110) oriented crystals was found to be 15 kV/cm with a piezoelectric coefficient (d33) of 650 pC/N. The lateral mode electromechanical coupling factor (k31) of 〈;110〉/〈001〉 cut was around 75% with a piezoelectric coefficient (d31) of -800 pC/N. The dielectric, piezoelectric and electromechanical properties were nearly temperature independent from room temperature to 250°C, making BSPT crystals promising for sensor and transducer application.
|Original language||English (US)|
|Journal||Japanese Journal of Applied Physics, Part 2: Letters|
|Issue number||10 A|
|State||Published - Oct 1 2003|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)