Article ID Journal Published Year Pages File Type
1801786 Journal of Magnetism and Magnetic Materials 2010 4 Pages PDF
Abstract

Mn0.8Mg0.2Fe2O4 ferrite was synthesized using flash auto-combustion technique using urea as fuel. The effect of the urea-to-nitrates ratio was examined and found to affect the samples characteristics. The as-burnt powder was crystallized in single-phase spinel structure of cubic symmetry. The lattice parameter was decreased with increase in the urea-to-nitrates ratio (n) while the crystal size increased from 21 to 42 nm with n changing from 6.67 to 10. The coercivity increases while the saturation and remanence magnetization decreases with increase in n. This was attributed to the disturbance of the spin order as a result of the surface effects.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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