Determination of the interface structural morphology from grazing-incidence X-ray diffraction data using dynamical theory

Autor: Hung-Chun Chien, Mei-Yen Li, Shih-Lin Chang, Tsai-Sheng Gau, Maw-Kuen Wu
Rok vydání: 1997
Předmět:
Zdroj: Surface Science. 384:254-259
ISSN: 0039-6028
DOI: 10.1016/s0039-6028(97)00228-8
Popis: A scheme based on X-ray dynamical theory is developed to analyze grazing-incidence X-ray diffraction data and to determine the interface structural morphology efficiently with a number of fitting parameters related to the phases and magnitude of the electric susceptibilities. This scheme is applied to surface normal-scans to study the relatively complex interface structure of the YSZ MgO (001) system. It is found that the interface is composed of three types of crystallites of the c-elongated tetragonal structure with thicknesses of about 300, 150 and 50 A in the direction normal to the interface. The related structural parameters are also deduced.
Databáze: OpenAIRE