Influence of ion implantation on permeability disaccommodation and magnetic losses of cobalt

摘要

Effect of nitrogen and oxygen ion implantation (80 keV) on thin polycrystalline cobalt wire have been studied on the basis of residual loss angle and magnetic after-effect measurements from 300 K to 450 K, using an automated Maxwell bridge. On a strongly temperature-dependent residual loss angle curve, after oxygen ion implantation (dose 10/sup 19/ m/sup -2/), an additional-radiation maximum at 350 K occurs, which might be attributed to a relaxation effect due to a reorientational or migrational motion of interstitial atoms.