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Figure 2
(a) Evolution of the sum of the intensities of all the observed satellite reflections versus the sum of the intensities of all reflections with I ≥ 3σ(I), as a function of the normalized temperature (Tc = 290 K). The same area of the (0KL) plane is plotted for different temperatures. Below Tc, weak satellite reflections are observed (red arrows). The solid line is a fit given by the (squared) expression of the BCS gap in the weak coupling limit (Δ0/KTc = 1.76), see the text. (b) Evolution of the component of q along b* versus T.

IUCrJ
Volume 13| Part 4| July 2026|
ISSN: 2052-2525
https://doi.org/10.1107/S2052252526002836