Abstract
Off-track side crosstalk response and Bitter pattern on a perpendicular magnetic recording medium observed after recording with a single-pole head were investigated experimentally for various track widths and bit lengths. A Co-Cr/permalloy flexible disk medium of 3.5″ diameter and single-sided single-pole heads of 3.8μm, 5.5μm, 7.0μm track width were used for the evaluation. The following results were obtained by this experiment: 1) the recorded track width accurately coincided with the width of a main pole even for the very narrow track width of 3.8μm; and 2) side crosstalk in perpendicular magnetic recording is determined by the side reading behavior of the single-pole head used.
