Structural changes in multilayer systems containing InxGa₁₋xAs₁₋yNy quantum wells

The investigations of multilayer nano-scale systems contained one or two quantum wells are carried out by double-crystal X-ray diffractometry. Processes of interdiffusion of In, Ga atoms and their influence on properties of such systems are considered. The content of nitrogen in quantum wells and buffer layers are defined. It is determined that InxGa₁₋xAs₁₋yNy system has perfect crystalline structure, and interface between layers is coherent

Comprehensive investigation of defects in highly perfect silicon single crystals

We used X-ray diffraction method of total rocking curves and nondestructive direct observation techniques (atomic force and scanning electron microscopies) to quantitatively determine the defect characteristics (radii and concentrations) for the main types of defects in Czochralski-grown silicon single crystals annealed at 750 °С