Extremely high bit density recording with single-pole perpendicular head |
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Authors: | Yamamoto S Nakamura Y Iwasaki S |
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Affiliation: | Tohoku University, Sendai, Japan; |
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Abstract: | Since perpendicular magnetic recording is free from recording demagnetization, high-density recording up to the intrinsic limit of a recording medium is possible. This prediction was verified experimentally in a flexible disk system using a single-pole head and a Co-Cr/Ni-Fe double-layer medium. We could record and reproduce signals up to 680KFRPI. The recording bit length at the highest density was of the order of the Co-Cr columnar diameter. |
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