Growth behavior of amorphous Ca and La modified PbTiO3 thin film

• Published in: Journal of non-crystalline solids Vol. 354; no. 45-46; pp. 5014 - 5017
• Main Authors: Li, W.L., Chi, Q.G., Wang, J.M., Fei, W.D.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.11.2008; Elsevier
• Subjects: Alloys; Cross-disciplinary physics: materials science; rheology; Crystal growth; Exact sciences and technology; Films and coatings; Growth from solid phases (including multiphase diffusion and recrystallization); Materials science; Methods of crystal growth; physics of crystal growth; Physics; Titanates; Crystal growth; Titanates; Films and coatings; Alloys; Surface morphology; Lead titanates; Self affinity; Fractals; Surface diffusion; Amorphous state; Small angle X ray scattering; Thin films; Ion substitution; Specular reflection; Scaling laws; Growth mechanism; Dynamic model
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/j.jnoncrysol.2008.07.021

The growth behavior of amorphous Ca and La modified PbTiO3 (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.