Abstract
Since a single pole head for perpendicular double layer media had a very sharp field distribution, it was expected a narrow erase-band width. In this paper, we discussed the dependence of erase-band width on recording densities through the measuring of off-track profiles with a spin-stand. The range of the recording densities during the measurement was from 20 kFRPI to 200 kFRPI. Measured track-widths were almost the same as the mechanical width of the main-pole, and erase-band width around 30 nm was obtained with almost no dependence on recording density and current.
