Fig. 6: Temperature stability of electrostrain properties and microstructures of the RRFC.
From: Re-entrant relaxor–ferroelectric composite showing exceptional electromechanical properties

a Bipolar Smax at 3 and 6 kV/mm shows two temperature dependences (blue and red lines), corresponding to the temperature windows of the ergodic relaxor and RRFC (x = 7). The insets show the bipolar strain–field curves at 233, 253, and 293 K. b–d In situ TEM observations of the RRFC at 250, 293, and 360 K