Published online by Cambridge University Press: 06 March 2019
It is well known that x-ray diffraction techniques provide one of the most direct means of analyzing superlattice periodicity, layer thickness, strain, and defect structure. This suitability of x-rays is a consequence of the fact that most superlattice periods are in the range of 10 to 50 times the typical wavelength (Cuκα=1.54 Å) and are hence measurable by x-ray diffraction, and also that x-rays are non-destructive within the energy and dosage ranges needed for these studies. Applications of x-ray techniques to supperlattices have been discussed in many publications in the open literature.