A magnetic head forms a closed magnetic circuit with a magnetic core and has a gap in the closed magnetic circuit. At least a part of the magnetic core is composed of soft magnetic laminated films made by laminating soft magnetic thin film layers and noble metal layers. The soft magnetic thin film layers are exhibited by a composition formula of Fe.sub.a Si.sub.b Ta.sub.c Ru.sub.d Ga.sub.e N.sub.f (where "a", "b", "c", "d", "e" and "f" in the formula indicate compositions of respective elements by the atomic percent), and ranges of the compositions are: 62 atomic percent13 atomic percent. The noble metal layers contain at least a kind of Pt, Au, Ag and Pd.