CNR IMPROVEMENT OF CONVENTIONAL LIMDOW MEDIA FOR HIGHER DENSITY RECORDING

A. Okamuro; T. Hosokawa; M. Hashimoto; A. Sakemoto; T. Sugiyama; N. Ogihara; I. Kimura; K. Miyata; S. Kurita; T. Niwa

doi:10.3379/jmsjmag.22.S2_61

2 GBITS/INCH2 TECHNOLOGIES

CNR IMPROVEMENT OF CONVENTIONAL LIMDOW MEDIA FOR HIGHER DENSITY RECORDING

A. Okamuro, T. Hosokawa, M. Hashimoto, A. Sakemoto, T. Sugiyama, N. Ogihara, I. Kimura, K. Miyata, S. Kurita, T. Niwa

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Keywords: HIGH-DENSITY, LIMDOW, HIGHER-CNR, CROSS-WRITE

JOURNALS OPEN ACCESS

Volume 22 (1998) Issue S_2_MORIS_97 Pages S2_61-63

DOI https://doi.org/10.3379/jmsjmag.22.S2_61

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Abstract

We have developed Light intensity Modulation Direct Over Write (LIMDOW) Magneto Optical (MO) media whose structure gives CNR higher by 2dB than the conventional LIMDOW. In addition, cross-write characteristic has been improved by tuning of magnetic layers parameter. The LIMDOW media with 1.9Gbit/inch² of recording density is realized by these improvements without using any techniques such as PRML in λ =680nm and NA=0.55.

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