Answers are grounded in this paper and cite their sources.
The high density recording characteristics of perpendicular magnetic recording using a single-pole head are affected by the magnetic interaction between the medium and the head. By decreasing the relative thickness of the Co-Cr layer in the double-layer medium to that of the main-pole of the head, and increasing the saturation magnetization of the Co-Cr layer, the high density recording characteristics are enhanced. When requisite conditions are realized, the reproduced voltage vs. bit density characteristics are improved considerably for a thinner main-pole of the single-pole head.
No takes yet. Share an insight, caveat, or question.
Nakamura et al. (1986) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: