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Figure 2
Amplitudes (log scale) of the difference FCs [| {\widetilde {C^n}} (q_{1}, q_{2}) |] for n = [1,\ldots,12], determined at (a) q1 = q2 = q, (b) q2 = 0.15 nm−1, (c) q2 = 0.25 nm−1 and (d) q2 = 0.40 nm−1 as a function of q1 (see Fig. 1[link]). Three dominant FCs of the orders n = 2 (red), n = 4 (blue), and n = 6 (green) clearly stand out from the background level [proximately indicated with dashed lines] formed by the degenerate FCs of other orders.

IUCrJ
Volume 6| Part 4| July 2019| Pages 635-648
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519005499