Figure 12

(a–e) Room temperature P–E hysteresis loops of pure BaBi4Ti4O15 and RE-substituted BaBi4−xRExTi4O15 (x = 0.10, RE = La, Pr, Nd, and Sm) ceramics.
(a–e) Room temperature P–E hysteresis loops of pure BaBi4Ti4O15 and RE-substituted BaBi4−xRExTi4O15 (x = 0.10, RE = La, Pr, Nd, and Sm) ceramics.