日本応用磁気学会誌
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
Recording Theory & Characteristics - I
CONDITIONS FOR ULTRA-HIGH DENSITY MAGNETIC RECORDING
Yoshihisa NAKAMURA
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ジャーナル オープンアクセス

1989 年 13 巻 S_1_PMRC_89 号 p. S1_33-42

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  It was already revealed by experiments and computer simulations that an ultra-high density signal over 20,000 FRPM (Flux Reversal Per Millimeter) can be recorded and reproduced by a single-pole head on a Co-Cr/Ni-Fe double-layer medium in perpendicular magnetic recording. In order to widely discuss the conditions which achieve such an ultra-high density recording in magnetic recording systems, computer simulations are carried out on each of magnetic recording, longitudinal, quasi-perpendicular and perpendicular. From the results, it has been shown that the combination of a single-pole head and a double-layer medium composed of a perpendicularly anisotropic recording layer and a soft magnetic underlayer is the most suitable for an ultra-high density recording.

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© 1989 by The Magnetics Society of Japan
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