Method and apparatus for perpendicular magnetic recording

摘要

The present invention comprises a method and apparatus for magnetizing the surface of a disk (502). In particular, the apparatus comprises a write head (800) which writes to a disk surface using a perpendicular recording process. The write head includes a leading pole (830) and a trailing pole, where the trailing pole (820) has a recessed portion (840) along its trailing edge. This recessed portion leads to an improved magnetic field gradient across the write head, thereby enabling a higher bit density during the write process.