
Projection along the cubic (simple) perovskite [001]_{p} and [110]_{p} directions, of a section of the unit cell of the double perovskite with A A^{\prime} B B^{\prime} \mathrm{O}_{6} general formula in the P 2_{1} / n and P 4_{2} / n space groups. There is a direct relation between the octahedra tilt and symmetry-adapted mode.
auto-cropped from the OCR Markdown crop box (stage B); materials and kind to be reviewed in Phase 1