Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films

Figure 1

Temperature dependence of dielectric constant of (a) BaTiO₃ (black line) and SrBi₂Ta₂O₉ (red line) and (b) that of an expanded figure in SrBi₂Ta₂O₉ [6].

(a)

(b)