title: Darwin's approach to X-ray diffraction on lateral crystalline structures.
abstract: Darwin's dynamical theory of X-ray diffraction is extended to the case of lateral (i.e., having a finite length in the lateral direction) crystalline structures. This approach allows one to calculate rocking curves as well as reciprocal-space maps for lateral crystalline structures having a rectangular cross section. Numerical modelling is performed for these structures with different lateral sizes. It is shown that the kinematical approximation is valid for thick crystalline structures having a small length in the lateral direction.
authors.affiliation: Komi Research Center, Ural Division, Russian Academy of Sciences, 167982, Syktyvkar, Russian Federation.
authors.forename: Vasily I
authors.initials: VI
authors.lastname: Punegov
authors.affiliation: Komi Research Center, Ural Division, Russian Academy of Sciences, 167982, Syktyvkar, Russian Federation.
authors.forename: Sergey I
authors.initials: SI
authors.lastname: Kolosov
authors.affiliation: School of Science and Technology, University of New England, NSW 2351, Australia.
authors.forename: Konstantin M
authors.initials: KM
authors.lastname: Pavlov
keywords: Darwin's dynamical theory; X-ray diffraction; lateral crystals; lateral structures; reciprocal-space maps