Table 1: Crystalline size calculated from XRD, Williamson-Hall equation, and particle size analyzer (SZ-100).

Sample Williamson-Hall crystalline size (nm)Debye-Scherrer crystalline size (nm)Particle size analyzer

Mg0.1Fe0.9O
1
51.95
73
Mg0.1Fe0.9O
1.25
50.9
72.1
Mg0.2Fe0.8O
1
34.4
70.9
Mg0.2Fe0.8O
1.25
27.94
70.2
Mg0.4Fe0.6O
1
24.42
43.7
Mg0.4Fe0.6O
1.25
16.45
37.7