Curie temperature and Rietveld parameters of crystal corresponds to the lattice parameters with different cFe.
| x (mol L−1) | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 |
| a/b (Å) | 5.87 | 5.88 | 5.85 | 5.89 | 5.89 | 5.87 |
| C (Å) | 23.01 | 23.06 | 22.96 | 23.06 | 22.95 | 23.03 |
| T c (°C) | 445.0 | 442.6 | 442.3 | 443.0 | 437.9 | 444.3 |