Patent ID: 7157160

Claim:
A magnetic thin film, comprising: a base layer being made of Fe x Co 1−x /NiFe, in which amount of Ni in the NiFe film is 45≦Ni≦85 wt %; and a plated layer directly adjacent to said base layer, said plated layer being made of FeCo, wherein a crystal structure of said plated layer has X-ray diffraction peaks of bcc (110) and bcc (200), a ratio of diffracted intensity of bcc (110) and bcc (200) is I110/I200<0.8, a composition of said plated layer is indicated as Fe x Co 1−x (50≦×≦80 wt %), a saturation magnetic flux density (Bs) is Bs≧2.25 T, and a coercive force (Hc) in a direction of a hard axis is Hc≦600 A/m.