| Atom | Site | x | y | z | B\left(\mathrm{~A}^{2}\right) |
|---|---|---|---|---|---|
| Sm | 2 d | 1/2 | 0 | 0 | 0.27(3) |
| Sb | 2 c | 0 | 1/2 | 0 | 0.29(3) |
| Sr | 4 e | 0.0085(8) | 0.0333(3) | 0.2528(8) | 0.61(4) |
| O1 | 4 e | 0.286(2) | 0.325(2) | 0.039(3) | 0.88(1) |
| O2 | 4 e | 0.308(3) | 0.266(3) | 0.435(2) | 0.88(1) |
| O3 | 4 e | 0.904(2) | 0.459(3) | 0.228(5) | 0.88(1) |