Data-driven methods for discovery of next-generation electrostrictive materials

Abstract All dielectrics exhibit electrostriction, i.e., display a quadratic strain response to an electric field compared the linear dependence of piezoelectrics. As such, there is significant interest in discovering new electrostrictors with enhanced electrostrictive coefficients, especially as can effective piezoelectricity when bias applied. We present results study combining data mining and first-principles computations that indicate exists group iodides, bromides, chlorides have coefficients exceeding 10 m 4 C –2 which are substantially higher than typical oxide ceramics polymers. The corresponding piezoelectric voltage three orders magnitude larger lead zirconate titanate.