Influence of interdiffusion of heteromaterials on X-ray diffraction by superlattice with stacking fault

Abstract

Abstract⎯X-ray dynamic diffraction on a superlattice with a stacking fault between the layers is considered theoretically in the case of interdiffusion of superlattice components. Expressions for the X-ray reflectance within satellite limits, depending on the wave's phase jump on the stacking fault, its depth and the extent of interdiffusion of superlattice components are obtained.

Determination of the superlattice structure factor by X-ray diffraction using a temperature gradient

“…Vardanyan et al (1985a,b) developed a dynamical theory of X-ray diffraction by the one-dimensional ideal SL of an arbitrary model, and they obtained formulas for structure factors for various SL models. Manukyan (2014) studied the dynamic diffraction of X-rays by an SL with a stacking fault. Levonyan & Manukyan (2016, 2019 examined the dynamic diffraction of a spherical X-ray wave by an ideal SL, as well as the effect of mutual diffusion of heteromaterials of an SL bilayer on the diffraction focusing of a spherical X-ray wave.…”