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Issues »  Volume 39, Issue 12

Statistical Theoretical Model of Dynamical Bragg Diffraction in a Two-Layer Crystalline System with an Amorphous Surface Layer

S. V. Dmitriev1, S. V. Lizunova1, M. G. Tolmachev2, B. V. Sheludchenko1, O. S. Skakunova1, V. B. Molodkin1, V. V. Lizunov1, I. E. Golentus1, A. G. Karpov2, O. G. Voitok2, V. P. Pochekuev2, S. P. Repetsky3, I. G. Vyshyvana3, L. M. Skapa1, O. V. Barabash3, G. O. Velikhovskii1

1G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
2LLC ‘Centre of Advanced Diagnostics’, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
3Taras Shevchenko National University of Kyiv, 60 Volodymyrska Str., UA-01033 Kyiv, Ukraine

Received: 04.09.2017. Download: PDF

For the goal of the creating of statistical dynamical theory of x-ray scattering in multilayer systems of crystalline and amorphous layers with differences in both the structure imperfections and the composition, as a main element of such a theory, the generalized theoretical model of coherent scattering in two-layer crystalline system with amorphous subsurface layer and statistically distributed Coulomb-type defects in each layer is developed. The expressions for coherent component of mentioned-system reflectivity are obtained using two methods: the method of amplitudes’ summation and the method of boundary conditions. That allows revealing and describing the mechanism of intensity formation due to effects of multiple scattering.

Key words: dynamical diffraction, multiple scattering, amorphous surface layer.

URL: http://mfint.imp.kiev.ua/en/abstract/v39/i12/1669.html

DOI: https://doi.org/10.15407/mfint.39.12.1669

PACS:

Citation: S. V. Dmitriev, S. V. Lizunova, M. G. Tolmachev, B. V. Sheludchenko, O. S. Skakunova, V. B. Molodkin, V. V. Lizunov, I. E. Golentus, A. G. Karpov, O. G. Voitok, V. P. Pochekuev, S. P. Repetsky, I. G. Vyshyvana, L. M. Skapa, O. V. Barabash, and G. O. Velikhovskii, Statistical Theoretical Model of Dynamical Bragg Diffraction in a Two-Layer Crystalline System with an Amorphous Surface Layer, Metallofiz. Noveishie Tekhnol., 39, No. 12: 1669—1691 (2017) (in Ukrainian)

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