磁気転写用磁石の斜め方向磁場が転写特性に及ぼす影響(磁気記録)

概要

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The magnetic duplication technique using patterned master media is a promising means of writing servo signals onto hard disks at high speed and low cost. It is expected that the direction of the applied magnetic field in the duplication process significantly influences the duplication characteristics. The objective of this paper is to clarify the influence of the oblique magnetic field out of the master plane. Experiments showed that the reproduced waveform from a slave duplicated with an oblique field is asymmetric near both edges of the protrusion of the master. The asymmetric waveform is improved by increasing the field, but the duplication characteristics with an oblique field are still inferior to those with an in-plane field. Computer simulation of the magnetization distribution of the slave duplicated with an oblique field shows that the distribution is asymmetric near both edges of the protrusion of the master, coinciding with the experimental results.
社団法人日本磁気学会の論文
2006-03-01