Structure And Magnetic Properties Of Nonosized Sno-Fe2o3 Material Obtained By Ball Milling

A mixture of Fe2O3 and SnO oxides has been mechanically milled to form SnFe2O4 spinel phase. X-ray diffaction pattern of the milled mixture shows that after milling, both peaks of Fe2O3 and SnO remain with a drastic decrease of their intensities and broadening. The appearance of a broad halo around 2 theta similar to 31 degrees indicates the formation of an amorphous phase. After annealing at 750 degrees C for 1 h, SnO peaks disappear completely and new diffraction peaks emerge indicating the formation of a new nanophase i.e. SnO2. Magnetic measurements of the as-milled mixture show a ferromagnetic behavior with saturation magnetization Ms = 6: 8 emu / g which drastically decreases after annealing to 0: 6 emu / g.