Observation of strong virtual scattering under three-beam (220, 371) X-ray diffraction in TeO{sub 2} single crystal
- Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
- Kurchatov Institute, Russian Research Centre (Russian Federation)
A strong effect of virtual scattering has been experimentally observed when studying the nearly coplanar three-beam (220, 371) X-ray diffraction in a paratellurite single crystal under high-resolution double-crystal X-ray diffraction using MoK{sub {alpha}1} radiation. One characteristic feature of this effect is that the angular dependence of the first (strong) reflection intensity and its shape barely change in the three-beam range of parameters, whereas very strong changes are observed for the second (weak) reflection not only in the three-beam range but also far beyond it, which is related to the variation in the two-beam diffraction parameter due to virtual scattering. The changes observed are asymmetric and make it possible to determine the triplet combination of structure-factor phases.
- OSTI ID:
- 22051249
- Journal Information:
- Crystallography Reports, Vol. 55, Issue 1; Other Information: Copyright (c) 2010 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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