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Figure 8
Schematic diffraction pattern of the caesium chloride (CsCl-type) structure in projection along the [001] direction. As explained in the caption of Fig. 7[link] referring to the boxed 210 reflection, the open circles represent weak diffraction spots if the scattering powers of the A and B ions in the ordered structure are different. If complete disorder takes place, so that the scattering power of the A and B atoms is in balance, the weak reflections will disappear and the remaining pattern will be that of a simple bcc structure, represented by the filled diffraction spots.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 82| Part 2| February 2026| Pages 235-243
https://doi.org/10.1107/S2056989026000745
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