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Figure 1
Analysis of the diffraction data. (Top) The planar sections through the 3D diffraction pattern and its representation in the [{k_\parallel }] domain are presented. The superstructure peak is circled with a yellow-dotted line. The profile of the peak 10111 [indexed in setting (1)] indicates it is in fact assembled out of three peaks that are not separated due to the high width of the diffraction peaks. (Mid and bottom) FWHM and the peak shift with respect to [{k_{\parallel (\bot)}}]. Large experimental uncertainty of the measured peak characteristics makes quantitative analysis of the phason and phonon strain impossible.

IUCrJ
Volume 8| Part 1| January 2021| Pages 87-101
ISSN: 2052-2525
https://doi.org/10.1107/S2052252520015444