Variation, as function of the tolerance factor, of the three distortion irrep amplitudes $\mathrm{GM}_{4}^{+}$ (black), $\mathrm{X}_{3}^{+}$(red) and $\mathrm{X}_{5}^{+}$(blue), and the cell parameters (black) and the unit cell volume (blue) for the $\mathrm{Sr}_{2} \mathrm{Co}_{1-x} \mathrm{Mg}_{x} \mathrm{TeO}_{6}$ series at room-temperature. The colored backgrounds indicate the regions of the two space groups, $P 2_{1} / n$ and $I 2 / m$, observed for the four compositions.
Variation, as function of the tolerance factor, of the three distortion irrep amplitudes \mathrm{GM}_{4}^{+} (black), \mathrm{X}_{3}^{+}(red) and \mathrm{X}_{5}^{+}(blue), and the cell parameters (black) and the unit cell volume (blue) for the \mathrm{Sr}_{2} \mathrm{Co}_{1-x} \mathrm{Mg}_{x} \mathrm{TeO}_{6} series at room-temperature. The colored backgrounds indicate the regions of the two space groups, P 2_{1} / n and I 2 / m, observed for the four compositions.