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Figure 1
(a) The BKD signal collected on zincblende (ZnS) very likely twinned || {111}. The twinned part of the signal is identifiable by 14 faint but clearly visible additional bands. Their band edges are indicated by dashed red lines, and for bands invisible to the eye the lattice plane traces are plotted as solid red lines. (b) The marked bands in panel (a) are shown as red spheres and are responsible for the sketched hexagonal reciprocal cell with (0001) || (111)c. Without the red spheres the correct (centred) cubic cell results (projection [\parallel [1{\overline 1} 0]_{\rm c}]). The reciprocal-lattice points at the corners of the cubic unit cell are highlighted in light green, while the dark-green spheres display centred positions. (c) The simulated pattern of zincblende and (d) the overlaid signal of two twinned ZnS crystals with an intensity ratio of 100:60, where one clearly visible false Kikuchi band marked by red dashed lines is missing in panel (c) but included in (a).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 56| Part 2| April 2023| Pages 367-380
https://doi.org/10.1107/S1600576723000845
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