Figure 10
Hysteresis loops (a) and simulated diagrams of domain switching behavior (b) for SPT55 which measured before being poled (a1) and (b1), immediately after being poled (a2) and (b2), one day later after being poled (a3) and (b3) and after annealing in air (a4) and (b4). PS, PS’, PD and PD’ represent spontaneous polarization, new spontaneous polarization after poled, defect polarization and new defect polarization after poled, respectively. The blue line in (b3) is domain wall.
