fig6

Figure 6. Temperature stability of large-signal inverse piezoelectric coefficient through PNRs. (A) Temperature stability of d₃₃*. (B) Bipolar electrostrain of the x = 0.025 composition. (C) Temperature dependence of S_uni, P_r, P_max and $$P_{\max }^{2}-P_{r}^{2}$$. (D) Temperature dependence of d₃₃* under different electric fields. (E) Representative bright-field TEM images. (F and G) TEM images of Moiré patterns. This figure quoted with permission^[57]. Copyright 2018, Royal Society of Chemistry.