Medium Noise Reduction of CGC(Coupled Granular and Continuous) Double-layered Media.

健司, 三浦; 裕明, 村岡; 義明, 園部; 慶久, 中村

doi:10.3379/jmsjmag.26.233

Cited by 1 publication

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“…8 that the recorded bit pattern for C1 medium is more clearly defined than that for C0 medium. The standard deviation for the actual transition position, which was shifted in the down-track direction from the ideal transition line, was used as a parameter reflecting transition fluctuation [17], and it was obtained from the MFM images for both media at the recording density of 100 kFRPI. As shown in Table III, the values of for C0 and C1 media were 22.2 and 15.2 nm, respectively.…”

Section: A Improvement In R/w Characteristics By Introducing C Intermentioning

confidence: 99%

Reduction of medium noise of co-pd multilayered perpendicular magnetic recording media by a thin carbon interlayer

Sayama

Kawaji

Asahi³

et al. 2003

IEEE Trans. Magn.

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We report the effect of introducing a thin carbon interlayer to the recording layer on the read-write characteristics of Co-Pd multilayered perpendicular magnetic recording media. A 1-nm-thick carbon interlayer markedly reduced the medium noise and improved the output resolution, 50 . As a result, the signal-tonoise ratio at the recording density of 200 kFRPI for the medium was higher by 5 dB than that for the medium without the interlayer. We attribute these improvements in read-write characteristics to a decrease in the crystal grain diameter of the recording layer, resulting in suppression of the transition fluctuation of recorded bits. The Co-Pd multilayered perpendicular magnetic recording medium with carbon interlayer has a high thermal stability despite a slight degradation of perpendicular magnetic anisotropy.Index Terms-Carbon interlayer, Co-Pd multilayer, medium noise, perpendicular magnetic recording.

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Section: A Improvement In R/w Characteristics By Introducing C Intermentioning

confidence: 99%

Reduction of medium noise of co-pd multilayered perpendicular magnetic recording media by a thin carbon interlayer

Sayama

Kawaji

Asahi³

et al. 2003

IEEE Trans. Magn.

View full text Add to dashboard Cite

show abstract

Medium Noise Reduction of CGC(Coupled Granular and Continuous) Double-layered Media.

Cited by 1 publication

References 6 publications

Reduction of medium noise of co-pd multilayered perpendicular magnetic recording media by a thin carbon interlayer

Reduction of medium noise of co-pd multilayered perpendicular magnetic recording media by a thin carbon interlayer

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