Magnetic Properties of Iron-added Titanium Oxide Nanotubes

Titanium oxide represents a promising candidate as the support material for dilute magnetic semiconductors (DMSs), especially in a nanostructured form. Titania nanotubes ordered arrays produced by anodization have been used in this study as the base material for the addition of a ferromagnetic component, iron in particular. Several routes such as titanium-iron films co-deposition before anodization, anodization in iron cations containing solutions, and post-anodization iron deposition have been used for the incorporation of iron into the titanium oxide nanotubes matrix. Samples morphology and structure was analyzed by electron microscopy, and by EDS and XRD spectroscopy. Subsequent magnetic measurements were performed on both amorphous and crystalline samples, and compared with references such as blank nanotubes and commercial anatase nanoparticles powder.