| 摘要 |
In a patterned perpendicular magnetic recording medium, embodiments of the present invention provide a magnetic head in which magnetic field to be applied to adjacent tracks can be suppressed and a recording device equipped with the magnetic head. In one embodiment of the present invention, a sum of a width Pw of a main pole of a magnetic head and distances between right and left magnetic substances on a width-directional side of tracks and the main pole, so-called widths of side gap lengths s_g 1 <SUB>-</SUB> 1 and s_g 1 <SUB>-</SUB> 2 is, in a magnetic recording medium having a soft-magnetic underlayer, made to be not more than a sum of a width w_land of a convexity or land of the soft-magnetic underlayer and widths w_groove<SUB>-</SUB> 1 and w_groove<SUB>-</SUB> 2 of concavities or grooves adjacent to the land on both its sides.
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