Syntheses of Amorphous Gd-Co Sputtered Films with Anisotropy Modulated Superstructure

It was experimentally confirmed that when selective resputtering is performed only the atoms very near the surface layer are sputtered, agreeing well with theoretical predictions and computer calculations. A film with deposition film thickness td greater than composition change threshold thickness tc was found to be compositionally modulated with change in composition of about a few percent. The authors propose to call this new type of magnetic film an anisotropic modulated superstructure film.