Spacing loss and change in wave shape of perpendicular magnetic recording in the narrow spacing region

Y. Sonobe; Y. Tanaka; R. Nishikawa

doi:10.1109/20.92145

Spacing loss and change in wave shape of perpendicular magnetic recording in the narrow spacing region

Y. Sonobe, Y. Tanaka, R. Nishikawa

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Toshiba Corporation

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Abstract

The spacing loss for perpendicular recording in the narrow spacing region (≤0. 1 µm) was investigated. Read and write spacing losses depended on both head and medium characteristics. The head-medium combination with the large spacing loss showed the big change of isolated pulse shape with increased head-to-medium spacing. A MIG (metal-in-gap) head and medium with large anisotropy and large Hc1 can suppress both the spacing loss factor and the wave shape change.

Original language	English
Pages (from-to)	2473-2475
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	24
Issue number	6
DOIs	https://doi.org/10.1109/20.92145
Publication status	Published - 1988 Nov

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abstract = "The spacing loss for perpendicular recording in the narrow spacing region (≤0. 1 µm) was investigated. Read and write spacing losses depended on both head and medium characteristics. The head-medium combination with the large spacing loss showed the big change of isolated pulse shape with increased head-to-medium spacing. A MIG (metal-in-gap) head and medium with large anisotropy and large Hc1 can suppress both the spacing loss factor and the wave shape change.",

author = "Y. Sonobe and Y. Tanaka and R. Nishikawa",

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AB - The spacing loss for perpendicular recording in the narrow spacing region (≤0. 1 µm) was investigated. Read and write spacing losses depended on both head and medium characteristics. The head-medium combination with the large spacing loss showed the big change of isolated pulse shape with increased head-to-medium spacing. A MIG (metal-in-gap) head and medium with large anisotropy and large Hc1 can suppress both the spacing loss factor and the wave shape change.

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Spacing loss and change in wave shape of perpendicular magnetic recording in the narrow spacing region

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