fig26

Figure 26. Engineering local lattice distortion via a high-entropy strategy to enhance ESP. (A) Ionic radii and theoretical polar displacements of various A-site cations; (B) Chemical composition design of high-entropy Bi_0.5K_0.5TiO₃ (BKT)-based RFEs; (C and D) Atomic configurations showing A-site cation distributions and corresponding local lattice distortion fields from density functional theory (DFT) calculations; (E and F) Schematics of energy profiles and evolution of P-E loops illustrating improved ES behavior. This figure is quoted with permission from Zhu et al.^[329]. ESP: Energy storage performance; RFE: relaxor ferroelectric.