Semiconductor magnéticamente diluido de SnO2- Fe obtenido por precipitación controlada

Solid solutions were synthesized SnO2 doped with 5% and 8 mol% Fe by the controlled precipitation method. The particles size was obtained of ∼12 nm with heath treatment 450 °C. The presence of iron in the structure is evidenced by Raman spectroscopy The crystallite size we obtained with the results of XRD, and particle size by MET, it was concluded that the nanoparticles obtained were monocrystalline. The particles were characterized magnetically, for the powders doped to 8% Fe was determined ferromagnetic behavior at 5K, with a tendency superparamagnetic and paramagnetic at a temperatue of 300K