Effect of milling process on the magnetic properties of FIB patterned magnetic nanostructures

Summary form only given. There has been much interest in nano-patterning of hard and soft magnetic materials and perpendicular recording media using the FIB technique, but very few of them has been focused on the milling process and its effect on the magnetic properties of the patterned nanostructures. In this work, the FIB patterning of commercial post-sputtering longitudinal media has been performed with emphasis on how the redeposition would affect the morphology of the patterned structure as well as its magnetic properties. The former was studied using AFM and the latter by MFM.