发明授权
US06510023B1 Magnetic head for high coercive force magnetic recording medium 失效
磁头用于高矫顽力磁记录介质

Magnetic head for high coercive force magnetic recording medium
摘要:
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 FeaSibTacRudGaeNf (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 percent 13 atomic percent. The noble metal layers contain at least a kind of Pt, Au, Ag and Pd.
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