Resume of the irreps taking part in the symmetry-breaking from the totally symmetric, cubic, space group ( F m \overline{3} m) to the intermediate phase R \overline{3} trigonal space group. The list is part of the output of the AMPLIMODES for FullProf. The number in parenthesis indicate the number of modes transforming according to the irrep and the primary mode is written in bold letters.
| Atoms | WP | Modes |
|---|---|---|
| F m \overline{3} m \rightarrow R \overline{3} | ||
| O 1 | 24 e | \mathrm{GM}_{1}^{+}(1) \mathrm{GM}_{4}^{+}(\mathbf{1}) \mathrm{GM}_{5}^{+}(1) |
| \mathrm{Sr} 1 / \mathrm{Pr} 1 | 8 c | \mathrm{GM}_{5}^{+}(1) |