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

Figure 6

X-ray diffraction profiles along the [0 0 l] direction of the BaTiO₃ thin films with 60 Å on SrTiO₃ substrate (monochromatized CuKα). Subscript “Sub” means reflections from SrTiO₃ substrate [24].