Table 4. Refined Crystal Parameters for α-Ga0.2Al1.8O3a.
| atom | Wyckoff site | x | y | z | occupancy | Beq (Å2) |
|---|---|---|---|---|---|---|
| Ga | 12c | 0 | 0 | 0.35289(8) | 0.09(6) | 0.22(5) |
| Al | 12c | 0 | 0 | 0.35289(8) | 0.91(6) | 0.22(5) |
| O | 18e | 0.3057(3) | 0 | 0.25 | 1.0 | 0.22 |
Lattice parameters a = 4.78281(5) Å, c = 13.04096(15) Å, space group R3̅cH. Rp = 12.5%. wRp = 19.0%. GoF = 1.247. The thermal parameter for oxygen was fixed to achieve a satisfactory fit.