Abstract:High strain and good temperature stability are contradictory properties in (K, Na) NbO 3 (KNN)-based materials. Herein, good temperature stability with high strain is obtained in a multiphase coexistent [ie, orthorhombic-tetragonal (O-T) and rhombohedral-orthorhombic-tetragonal (R-O-T)] KNN. A second-order transition-like characteristic should contribute to the temperature stability, in which an intrinsic lattice structure forms a bridge between them. The observed second-order transition-like characteristic is… Show more
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