Full tensorial elastic, piezoelectric, and dielectric properties characterization of [011]-poled PZN-9%PT single crystal

摘要

Transverse piezoelectric property of 0.91Pb(Zn_1/3Nb_2/3)O₃-0.09PbTiO₃ (PZN-9%PT) single crystal poled along [011] direction under different fields have been investigated, the poling field giving the best property was between 350 and 650 V/mm at room temperature. Full tensorial elastic, dielectric, and piezoelectric properties of PZN-9%PT single crystal poled along the [011] direction under 500 V/mm have been determined by resonance and ultrasonic methods. It was found that the electromechanical coupling coefficients k₃₂ and k₃₃ can reach 0.90 and 0.89 and the piezoelectric coefficients d₃₂ and d₁₅ are –1705 and 2012 pC/N, respectively. This complete set of physical properties can provide convenience for piezoelectric device fabrication and domain engineering studies.