| 摘要 |
PURPOSE:To improve the magnetic characteristics by providing a nonmagnetic amorphous thin film between a main magnetic pole and an auxiliary magnetic pole part where the main magnetic pole is formed. CONSTITUTION:A groove is formed at the corner part of a magnetic material block 10 made of an Mn-Zn ferrite, etc. Thus, a groove part 11 for junction of nonmagnetic member is obtained. Another groove is formed at the part 11 to obtain a groove part 12 for winding. Then, a nonmagnetic material block 13 of calcium titanate, barium titanate, etc. is welded to the part 11 and this junction face side is ground into a mirror surface. An amorphous silicon film 15 is formed at the junction face side of the 1st half-split block 14. Then an Ar gas Co-Zr-Nb amorphous film 16 is formed on the film 15 with Co-Zr-Nb defined as a target. The block 14 is etched into the desired track width. Thus, the 2nd half-split block 17 is obtained. Both blocks 14 and 17 are put together by means of an organic adhesive with the junction faces of both blocks butted with each other. Thus a main body block is obtained. |
