fig5

Figure 5. (A) The P-E loops of PZO-based films at 800 kV/cm, and corresponding (C) the polarization difference value of Δ P (P_max - P_r). (B) The I-E loops of PZO-based films at 800 kV/cm, and corresponding (D) the switching field value of Δ E (E_F - E_A). PZO: PbZrO₃.