Abstract
Because single-pole heads used with perpendicular recording media have a very sharp head field distribution, high-resolution bit writing can be obtained. Indeed, using a flying height of around 50 nm, an erase-band width of around 30 nm has been measured. Low track-edge noise is also very important to the overall performance of the system, however. In this paper we discuss simulated head field distributions and track-edge noise performance through measurement of off-track noise profiles, obtained using a spin-stand. For a single-pole write head with perpendicular double-layer media, almost no track-edge noise was observed.
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