Fig.5-13 (a) Observed pair distribution functions (PDFs) for Bi0.5Na0.5TiO3 at various temperatures.

5_13

Fig.5-13 (a) Observed pair distribution functions (PDFs) for Bi_0.5Na_0.5TiO₃ at various temperatures.
(b) Structure obtained by model fitting of the PDF. This is the top view of Fig.5-12

In the high-temperature phase of Bi_0.5Na_0.5TiO₃, Bi shifts in the direction of the arrow, resulting in large polarization.

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