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Figure 4
Analysis of data from numerical calculations. (a) Averaged S(qx, qy, qz) of fault-free FCC crystals (red) and crystals with α = 0.01 stacking fault (green) and β = 0.01 twinning (blue) probability, plotted along a single rod in reciprocal space. (b) Azimuthally averaged scattering intensity for the same data as in (a). (c) and (d) Quantitative analysis of the XCCA peak widths, retrieved by Gaussian and Voigt profile fits as detailed in the main text. The error bars are retrieved from the uncertainty of the fits. For σ, error bars are smaller than the symbols. (e)–(g) [\tilde{C}_1(q_z^{(1)},q_z^{(2)})] correlation maps for the three cases considered above. The magenta dashed line denotes the location of the FCC (111) self-correlation from neighboring rods, used for the retrieval of Γ.

IUCrJ
Volume 12| Part 4| July 2025| Pages 462-471
ISSN: 2052-2525
https://doi.org/10.1107/S2052252525004063