| 摘要 |
PURPOSE:To obtain a sufficient bias magnetic field margin by providing a recessed pattern to the curvature part of the disk pattern of the corner part of a minor loop. CONSTITUTION:A C-shaped pattern notch 1c is provided to the curvature part 1a of a disk pattern 1 forming the minor loop corner part of a hairpin part for coupling a minor loop with a read major line. The attracting magnetic pole of this notch 1c is divided into two, and a magnetic bubble 11 transferred extending to both a bent pattern 3 and the pattern 1 when a revolving magnetic field 6 is in a direction 7 is not transferred onto the upper end part of the pattern 1. Further, when the magnetic field 6 is in a direction 9, the magnetic bubble 11 is not lined out to the left-hand side 3a of the bent pattern 3. Consequently, the magnetic bubble is transferred excellently even at the lower limit of a bias magnetic field. |
