Fig. 1. Double P-E loop of antiferroelectrics.

Fig. 2. Sawyer-Tower circuit.

Fig. 3. Circuit diagram of the experimental setup for pulse hysteresis loop.

Fig. 4. P(t) curves of PLZST under electric field with different amplitudes: (a) 22.22 kV·cm^–1; (b) 31.11 kV·cm^–1; (c) 40 kV·cm^–1; (d) 53.33 kV·cm^–1.

Fig. 5. 10 Hz and pulse P-E curves of PLZST: (a) 22.22 kV·cm^–1; (b) 31.11 kV·cm^–1; (c) 40 kV·cm^–1; (d) 53.33 kV·cm^–1.

Fig. 6. ΔP of PLZST under 10 Hz and pulse electric field.

Fig. 7. Differential permittivity of PLZST under (a) 10 Hz and (b) pulse electric field.

Fig. 8. Phase transition time of PLZST under pulse electric field.

Fig. 9. W_st of PLZST under 0.1–50 Hz and pulse electric field

Fig. 10. W_re of PLZST under 0.1–50 Hz and pulse electric field

Fig. 11. Pulse discharge current curve of PLZST (with a load resistor of 100.4 Ω and charging electric field of 53.33 kV·cm^–1)