Details of the Rietveld refinement results for \mathrm{Sr}_{2}\left(\mathrm{Co}_{1-x} \mathrm{Fe}_{x}\right) \mathrm{TeO}_{6}(x=0,0.25,0.5,0.75 and 1) room temperature data
| Compositions | x=0 | x=0.25 | x=0.5 | x=0.75 | x=1 |
|---|---|---|---|---|---|
| Space group | P 2_{1} / n | \mathrm{I} 2 / \mathrm{m} | \mathrm{I} 2 / \mathrm{m} | I 2 / m | \mathrm{I} 2 / \mathrm{m} |
| a / \mathrm{pm} | 564.09(2) | 562.89(2) | 562.94(2) | 561.23(2) | 561.80(2) |
| b/pm | 560.96(2) | 560.69(2) | 560.47(2) | 559.88(2) | 559.65(2) |
| c / \mathrm{pm} | 792.63(2) | 792.54(2) | 791.82(2) | 791.19(2) | 788.97(2) |
| \beta /{ }^{\circ} | 90.065(2) | 90.025(2) | 90.018(2) | 90.010(2) | 89.98(2) |
| V / 10^{6} \mathrm{pm}^{3} | 250.96(2) | 250.35(2) | 249.55(2) | 247.94(2) | 246.84(2) |
| Z | 2 | 2 | 2 | 2 | 2 |
| R_{\mathrm{B}} | 2.49 | 2.68 | 2.51 | 3.54 | 5.06 |
| R_{\mathrm{F}} | 6.16 | 3.55 | 2.96 | 2.34 | 3.77 |
| R_{\mathrm{P}} | 4.90 | 6.89 | 7.98 | 8.23 | 10.02 |
| R_{\mathrm{WP}} | 6.37 | 10.1 | 10.8 | 10.04 | 14.1 |
| \chi^{2} | 1.06 | 1.67 | 2.84 | 2.37 | 2.62 |