Fig. 1: Structure and piezoelectric properties of studied compositions in the Er0.025Pb0.9625(Mg0.33Nb0.67)1-xTixO3 system.
From: Phase transformation in lead titanate based relaxor ferroelectrics with ultra-high strain

a XRD patterns of studied compositions, with detail of the range between 44 and 46° on the right. b Fitted neutron diffraction profile for the x = 0.30 composition at room temperature. c Compositional dependence of Curie temperature and Piezoelectric coefficient. d Bipolar S-E loops for the x = 0.30 composition under an electric field of 2 kV mm−1. e Unipolar strain of poled ceramic samples of all studied compositions. f Comparison of unipolar strain at 2 kV mm−1 observed in other high-strain materials (KNSN3: K0.485Na0.485Sr0.03NbO3, KNN-5T: Textured (K,Na)NbO3 based ceramic)11,12,37,38 with that found in the present study.