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Write spacing loss in perpendicular magnetic recording

Journal of Magnetics Society of Japan Volume 10 Issue 2 Page 105-108
published_at 1986
Title
垂直磁気記録における記録スペーシング損失
Write spacing loss in perpendicular magnetic recording
Creators Yamamoto Setsuo
Creators 鈴木 幹夫
Creators 中村 慶久
Creators 岩崎 俊一
Write spacing losses in perpendicular magnetic recording have been investigated experimentally for a ring head and a single pole head. In ring head recording, an increase of write spacing causes the change of magnetization mode in the Co-Cr layer from perpendicular to longitudinal. In single pole head recording, the magnetization mode remains perpendicular, even for large write spacing. Furthermore, the reproduced voltage in saturation recording decreases with increased write spacing, since the magnetization transition length is broadened by the decreasing write head field gradient resulting from disappearance of head-to-medium magnetic coupling. Therefore, in perpendicular magnetic recording, a slight reduction of the head-to-medium spacing leads to a remarkable improvement in high density recording characteristics.
Languages jpn
Resource Type journal article
Publishers 日本応用磁気学会
Date Issued 1986
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0285-0192
[NCID]AN0031390X
https://doi.org/10.3379/jmsjmag.10.105
[isVersionOf] [URI]http://www.wdc-jp.com/msj/journal/index.html
Schools 大学院理工学研究科(工学)