The synthesis of iron doped tin oxide by pulsed laser pyrolysis is reported. The as obtained nanoparticles have a dominant SnO2 phase (as revealed by Wide Angle X-ray Scattering), with particles of the order of 10 nm. The doping with iron or iron oxide triggers magnetic properties as confirmed by SQUID experiments. EDX measurements supported the presence of Fe while Wide Angle X-ray Scattering failed to sense any iron or iron-oxide phase. It is concluded that Fe is well dispersed within the tin-oxide nanoparticles. The coercitive field has a complex dependence on the Fe/Sn content suggesting that the magnetization is not controlled solely by the amount of Fe dispersed within the nanoparticles.
Wei, X., et al. “On the Synthesis and Physical Properties of Iron Doped SnO2 Nanoparticles.” Journal of Nanoscience and Nanotechnology, vol. 12, no. 12, Dec. 2012, pp. 9299–301, doi:10.1166/jnn.2012.6784.
Journal of Nanoscience and Nanotechnology