
Geometrical representations of the distortion modes of the symmetry breaking from the cubic prototype phase into the tetragonal P 4_{2} / n phase: \mathrm{GM}_{3}^{+}(1), \mathrm{GM}_{3}^{+}(1), \mathrm{GM}_{4}^{+}(1), \mathrm{X}_{2}^{+}(1), \mathrm{X}_{3}^{+}(1), \mathrm{X}_{4}^{+}(2) and \mathrm{X}_{5}^{+}(3). The numbers in parenthesis indicate the number of modes transforming according to the corresponding irrep. The principal modes are highlighted in grey.
auto-cropped from the OCR Markdown crop box (stage B); materials and kind to be reviewed in Phase 1