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Side Crosstalk Response in Perpendicular Magnetic Recording with Narrow Track Width Single-pole Head

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4 Author(s)
Numazawa, J. ; NHK Science & Tech. Res. Labs. ; Yoneda, Y. ; Aruga, F. ; Horiuchi, T.

We investigated the off-track side crosstalk response and Bitter patterns in perpendicular magnetic recording media after recording with a single-pole head, for various head track widths and recorded bit lengths. A Co-Cr/permalloy flexible 3.5" disk medium and single-sided single-pole heads with track widths of 3.8, 5.5 and 1.0 ¿m were used in evaluations. Experiments yielded the following results: 1) the recorded track width coincided precisely with the width of the main pole, even at the very narrow track width of 3.8 ¿m; 2) side crosstalk in perpendicular magnetic recording is governed by the side-reading behavior of the single-pole head used.

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Magnetics in Japan, IEEE Translation Journal on  (Volume:5 ,  Issue: 3 )