Modification of effective surface and crystalline anisotropies of Ag/Fe/Ag(001)-layers by ion implantation

The change of the thickness dependent anisotropies of high dose ion-implanted Ag/Fe/Ag-(001)-layers were studied by ferromagnetic resonance. The experimental results are discussed within the frame of a phenomenological model considering implantation induced lattice misfit strains, which are caused by the reduction of the Ag lattice parameter by interface mixed Fe. With additional structural data from x-ray-diffraction the magnetoelastic constant [B.sub.1] is determined, which agrees well with the bulk value. Index Terms - ion implantation, ferromagnetic resonance, effective surface anisotropies, induced lattice misfit strains