发明授权
US07692896B2 Perpendicular magnetic recording head having return path layer and gap adjusting layer 有权
具有返回路径层和间隙调整层的垂直磁记录头

Perpendicular magnetic recording head having return path layer and gap adjusting layer
摘要:
A perpendicular magnetic recording head includes a main pole layer and a return path layer that are exposed from a medium-facing surface of the recording head facing a recording medium and that face each other with a predetermined gap therebetween at the medium-facing surface. A coil layer applies a recording magnetic field to the main pole layer and the return path layer. The return path layer includes a gap adjusting layer and a main layer stacked in that order from a side facing the main pole layer. The gap adjusting layer is positioned so as to face the main pole layer and the recording medium, and is made of a magnetic material having a resistivity lower than resistivities of the main layer and the main pole layer.
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