Abstract

Relaxor ferroelectric single crystals exhibit orientation dependent hysteresis. In this study, combined bipolar electric field and compressive stress are applied to relaxor single crystals of [Pb(Zn1/3Nb2/3)O3]0.955-[PbTiO3]0.045 (PZN-4.5%PT) in a series of crystal orientations between h001i and h111i. The resulting bipolar electromechanical response is presented. The observed hysteresis and nonlinear phenomena related to polarization reorientation and phase transitions are discussed.

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