
Simulated X -ray diffraction patterns for disordered \left(A A^{\prime}\right)\left(B B^{\prime}\right) \mathrm{O}_{6} cubic structure (black) and the most common distorted symmetries: R \overline{3} c (red), I4/mcm (green) and Pbnm (purple). In the inset is shown the splitting of the peaks. (Simulation characteristics: \lambda=1.5406 \AA (XRPD), a_{\mathrm{p}}=3.8873 \AA, P m \overline{3} m \left(a=a_{\mathrm{p}}\right), R \overline{3} c\left(\mathrm{a} \approx \sqrt{2} a_{\mathrm{p}}, \mathrm{c} \approx 2 \sqrt{6} a_{\mathrm{p}}\right), I 4 / m c m\left(a=\mathrm{b} \approx \sqrt{2} a_{\mathrm{p}}, \mathrm{c} \approx 2 a_{\mathrm{p}}\right), and Pbnm ( \mathrm{a} \approx \mathrm{b} \approx \sqrt{2} a_{\mathrm{p}}, \mathrm{c} \approx 2 a_{\mathrm{p}}.)
auto-cropped from the OCR Markdown crop box (stage B); materials and kind to be reviewed in Phase 1