fig4
Figure 4. Structure characteristics of different perovskites: (A) Cubic crystal structure of ABO3 perovskite (Reproduced from[5], copyright of Progress in Chemistry, 2022). (B) Cubic crystal structure of B-site double perovskite A2BB’O6 (Reproduced from[5], copyright of Progress in Chemistry, 2022). (C) Cubic crystal structure of A-site double perovskite AA’B2O6. (D) Tetragonal crystal structure of A-site double perovskite AA’B2O5.
