Interdiffusion and intermixing have been examined in Fe/Si trilayers prepared with ions of different energies, using the direct ion beam deposition technique. Isotope-pure layers were deposited and spin-polarized neutron reflectivity used to determine the role of Fe diffusion in iron silicide formation. It was found that a nonmagnetic iron silicide was formed that contained Fe from both the top and bottom layers in the trilayer, suggesting complete diffusion across the spacer region. Electron microscopy observations revealed the presence of an iron silicide phase and crystalline interface layers in films prepared with low energy ions (30 eV), while mixed and amorphous-like regions were found at higher ion energies (1OO eV).
|Number of pages||3|
|Journal||Journal of Applied Physics|
|Publication status||Published - 1 Jun 2001|
|Event||8th Joint Magnetism and Magnetic Materials - San Antonio, United States|
Duration: 7 Jan 2001 → 11 Jan 2001
Conference number: 8