Fig. 5: Combination of the low hysteresis and large strain of the RRFC at room temperature.
From: Re-entrant relaxor–ferroelectric composite showing exceptional electromechanical properties
a Electrostrain of ferroelectric (x = 4), RRFC (x = 7), and relaxor (x = 9), together with the typical Pb-based piezoelectric and electrostrictive ceramics of hard PZT and PMN [refs. 2,3,4]. b, c Composition dependences of Smax and hysteresis under an electric field of 3 kV/mm. d TEM images showing the microstructures of a typical ferroelectric (x = 4), RRFC (x = 7), and relaxor (x = 9). The inset shows the fast Fourier transform spectrum with the spot splitting of (121) and (220)
