Electron beam induced chemical vapor deposition (EBICVD) with tungsten and iron carbonyl gases, W(CO)6 and Fe(CO)5, was attempted to fabricate nanostructures. In case of the deposits from W(CO)6 gas, the structure was a mixture of nanocrystals and amorphous phases and no change was seen after a post-deposition heating treatment. On the other hand, the deposits from Fe(CO)5 gas were composed of amorphous iron surrounded by Fe oxide nanocrystals, and heating at about 600 °C resulted in the formation of crystalline Fe carbide and alpha-Fe phases. Thus, it was demonstrated that EBICVD with Fe(CO)5 gas followed by a heating treatment can be used practically to fabricate nanostructures of magnetic materials.
ASJC Scopus subject areas