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Figure 7
X-ray diffraction of the CsPbI3 sample at 1.2 GPa using 70% beam transmission. (Top) Mean of 500 pulses collected on each detector; the color scale is the same for both images. (Bottom) Integrated data from the patterns above combined into a single trace (black), shown with LeBail fit (orange) and residuals (lower black trace). Tick marks indicate the positions of allowed reflections. The fitted Pnma unit-cell parameters are a = 10.162 (2), b = 4.721 (1), and c = 17.396 (2) Å. No changes in the diffraction pattern were observed over the course of a run at 1.2 GPa.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 3| May 2026| Pages 552-561
https://doi.org/10.1107/S1600577526001608
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