Optimum compositions for Pb(Zn1/3Nb2/3)O 3-PbTiO3 single crystal for high-performance applications

Abstract

Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystals of (6-7) mol% PbTiO3 (PT) grown by the high-temperature flux technique under near-equilibrium conditions exhibit improved composition homogeneity, superior and consistent dielectric and piezoelectric properties which are also the least sensitive to PT content variation in the material, and a depolarization temperature of approximately 100°C. This composition holds promise for the production of large-size high-homogeneity high-performance relaxor single crystals for commercial use. ©2005 The Japan Society of Applied Physics.