fig12
![Microstructural evolution and ferroelectricity in HfO<sub>2 </sub>films](https://image.oaes.cc/acb286e2-3aef-4c4b-b87e-31f17f58d8a1/4637.fig.12.jpg)
Figure 12. (A) Pr of Sr:HfO2 FE capacitors as a function of electric cyclings. (B) Current-voltage curves for the pristine, wake-up and fatigue stages. (C) Leakage current-electric field curves measured after different cycling numbers[25]. Pr: Remanent polarization; FE: ferroelectric.