This article is cited in 3 papers

ON THE 270th ANNIVERSARY OF M.V. LOMONOSOV MOSCOW STATE UNIVERSITY (MSU). INSTRUMENTS AND METHODS OF INVESTIGATION

Interference phenomena in X-ray diffraction spectroscopy

E. N. Ovchinnikova^a, A. P. Oreshko^a, V. E. Dmitrienko<sup>b

a</sup> Lomonosov Moscow State University, Faculty of Physics
^b Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC Kurchatov Institute, Moscow

Abstract: We provide a review of recent research concerning the interference of several scattering channels of synchrotron radiation with wavelengths near the atomic absorption edges in crystals. The experimental conditions and theoretical approaches that yield the possibility of separating the contributions to the intensity of Bragg reflections from different types of scattering are considered, specific examples of studies are given, and the role of interference is discussed. It is shown that the resultant data yield unique information about different types of ordering (structural, charge, magnetic, etc.) at the atomic level and their dynamic behavior under external influences.

Keywords: X-ray radiation, synchrotron radiation, resonant diffraction, interference, forbidden reflections

PACS: 61.05.C-, 61.50.Ah, 78.70.Ck, 78.70.Dm

Received: February 20, 2025
Revised: March 2, 2025
Accepted: March 5, 2025

DOI: 10.3367/UFNr.2025.03.039876

 English version: Physics–Uspekhi, 2025, 68:4, 393–400

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