Investigation of magnetic properties for oblique deposited granular films by magnetic field annealing

摘要

A series of (Fe_(57)Co_(24)Ni_4Nb_2B_(13)_)_x-(SiO_2)_(1-x) nano-granular thin films were fabricated by magnetron sputtering with different oblique incidence angle θ and excellent soft magnetic properties are achieved. Based on the results of magnetic field anneal at different temperature T_a. it is evidenced that orientation of atomic pairs contributes to the annealing treatment, and could manipulate magnetic anisotropy. The damping coefficient α decreases with increasing angle θ and this is ascribed to the anisotropy dissipation.