Electron-beam-induced deposition of iron carbon nanostructures from iron dodecacarbonyl vapor

Iron based nanocomposites are of great interest in particular because of their magnetic properties. Preliminary results on image deposition from iron dodecacarbonyl by focused electron beam are presented. The specific electric resistance of fabricated lines was measured in the range from 4"10-2to 103 Ω cm dependently on deposition conditions. It was observed, that if the beam current increases, specific resistance sharply decreases. Positive temperature coefficient of conductivity for such material was determined. Effective activation energy of conductivity changed from 3-5kJ/mol for high conductivity lines to 15-25kJ/mol for low conductivity lines. Obtained data are considered on the base of representations of produced lines material as nanoclusters of iron spread in amorphous carbon matrix. The resistance change of deposited lines in media of different vapours and gases was estimated.© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.