Sample

Goodness of fit (χ²)

Profile R factor (R_p)

Weighted R factor (R_wP)

Bragg R factor (R_I)

Expected R factor (R_E)

ZnFe₂O₄

0.9541

8.31

11.00

6.80

11.53

ZnAl_0.2Fe_1.8O₄

0.9797

8.55

11.24

6.80

11.36

ZnAl_0.4Fe_1.6O₄

0.9984

8.86

11.46

6.84

11.22