Magnetic head for perpendicular recording

Abstract

Arrangement of the flux enhanced part and the flux enhanced end of a main pole and the front or side surface of the main pole of a single-pole head for perpendicular recording is considered to prevent the influence of the leakage magnetic field from those parts and to enhance a field gradient in a portion for writing the boundary of a bit cell into a recording layer in a profile of a perpendicular magnetic field. A flux enhanced part 26 and a flux enhanced end 39 of a main pole are arranged on a leading side 25 rather than a vertical plane 36 in parallel with the cross track direction including the trailing edge of an air bearing surface of the main pole. Further, the front surface on the trailing side of the main pole is arranged on the leading side rather than the vertical plane. The side surface of the main pole intersecting the cross track direction of the main pole is arranged on the track center side rather than a vertical plane perpendicular to the track width including the end of a track at the edge of the trailing side of the air bearing surface of the main pole. The field gradient of a perpendicular magnetic field on the trailing side of a main pole and both end sides of a track can be steep to realize a higher areal recording density.

1 - 10 . (Canceled).  
     
     
         11 . A magnetic head assembly including a magnetic head slider equipped with a thin film magnetic head having a single-pole type perpendicular recording head and a read head with a reading element; gimbals for supporting the magnetic head slider; and a suspension arm onto which the gimbals are fixed, wherein the perpendicular recording head has a main pole and an auxiliary head, and in the main pole, part or all of a flux enhanced part in which the area of the cross section in parallel with an air bearing surface is decreased as it approaches the air bearing surface and a position of the flux enhanced part closest to the air bearing surface, that is, a flux enhanced and are arranged on the air in-flow side of the main pole rather than a vertical plane in parallel with the cross track direction including the edge on the air out-flow side of the air bearing surface of the main pole.