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Figure 3
(a) Theoretical and (b) experimental diffraction patterns of the hk0-zone from the eightold superstructure (723 K). The [100] direction is horizontal and [010] is vertical. (a) Cell choice of the modulated structure model. The reflection conditions reproduce the correct symmetry for the odd-order satellites using hklm: h + m = 2n. But, unobserved even-order satellites (empty circles) are introduced as well, e.g. 0002 or 2002. (b) Experimental pattern: the hexagonal aristotype lattice is indicated in blue while the resulting orthohexagonal lattice is depicted in red.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 70| Part 5| October 2014| Pages 879-887
doi:10.1107/S205252061401806X
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