The influence of A-cation disorder on the Curie temperature of ferroelectric ATiO₃ perovskites

Abstract

The ferroelectric Curie temperature T_C in ATiO₃ perovskites is shown to increase linearly with the size variance of the A-site cation mixture [A = (Ba, Sr, Ca)] and this effect accounts for the unusual T_C variation in the Ba_1–xCa_xTiO₃ system.

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