In conventional knowledge, ferroelectric solid solutions were formed between members belonging to the same crystal structure family. Since both tungsten bronze and perovskite structures are constructed by connecting the corner-sharing oxygen octahedra, it offers a possibility for formatting an unusual solid solution between these two families. Herein, (1 -

Evolution of Ferroelectricity in Sr0.6Ba0.4Nb2O6–BaTiO3 Solid Solution with a Strong Electrocaloric Effect