| 摘要 |
PROBLEM TO BE SOLVED: To easily control the magnetic anisotropy of a metallic magnetic thin film and to prevent the leakage of the magnetic fluxes from the tip section of a magnetic gap. SOLUTION: The magnetic forming surfaces of a pair of magnetic core half bodies 11 and 12 are abutted, joined and integrated. Metallic magnetic thin films 15 and 16 are formed on at least one of the magnetic gap forming surfaces of the half bodies 11 and 12. Then, approximately linear grooves 17a and 18a are formed on the magnetic gap forming surfaces having tilt angles of 10 deg. to 30 deg. with respect to a track width direction with 0.1 to 0.5μm widths and with the intervals of 1/3 to 1/6 of the track widths in a normal direction against the track width direction.
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