Growth behavior of amorphous Ca and La modified PbTiO3 thin film

Abstract The growth behavior of amorphous Ca and La modified PbTiO 3 (PLCT) thin film has been studied in terms of the dynamic scaling approach, and the various scaling exponents associated with self-affine film surface have been characterized by small angle x-ray scattering technique. The results indicate that the amorphous relaxation has much influence on the growth behavior of films. For the light amorphous relaxation, the static scaling exponent α is 0.57, which suggests the surface diffusion dominates the surface morphology. As the effect of amorphous relaxation increasing, α is 0.30, suggests the desorption process is controlled mainly by the atomistic relaxation.