Based on an order–disorder transition model and the calculation of coulombic electrostatic interaction of B‐site ions, an “ordering structure factor” F 0 is introduced. Consequently, an available criterion and diagram to predict the order–disorder transition of A(B′B″)O 3 is presented quantitatively. The theoretical results compare satisfactorily with experimental data collected from the literature for different kinds of A(B′B″)O 3 ferroelectrics and antiferroelectrics. Permittivity ɛ′ is a sensitive parameter and plays an important role in order–disorder transition. The reason for conflicting arguments from different references for the ordering of some compounds is discussed.
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Zhang et al. (1991) studied this question.
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