Recording Characteristics of Electroless-Plated Perpendicular Recording Flexible Disks with a Perpendicular Head

Hiroshi Matsubara; Hirokazu Mizutani; Satoshi Mitamura; Tetsuya Osaka

doi:10.1109/20.54000

Recording Characteristics of Electroless-Plated Perpendicular Recording Flexible Disks with a Perpendicular Head

Hiroshi Matsubara^*, Hirokazu Mizutani, Satoshi Mitamura, Tetsuya Osaka

^*Corresponding author for this work

Research Organization for Nano & Life Innovation

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Perpendicular magnetic recording using a main-pole-driven perpendicular head was tested for the first time using electroless-plated flexible disks. Soft magnetic NiFeP films, also produced by electroless plating, were used as an underlayer of a perpendicular recording medium in this test. Two types of flexible double-layer media, composed of an electroless-plated CoNiReP film with two types of NiFeP underlayers with a coercivity of 2 and S.S Oe, developed in this study, were fabricated, and their recording characteristics were measured. A higher D50 value of 75 kFRPI was obtained for the medium with the 2-Oe underlayer. The output voltage for the medium with the softer magnetic 2-Oe underlayer was about twice as high as that for the medium with the 5.5-Oe underlayer.

Original language	English
Pages (from-to)	1210-1212
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	26
Issue number	3
DOIs	https://doi.org/10.1109/20.54000
Publication status	Published - 1990 May

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Recording Characteristics of Electroless-Plated Perpendicular Recording Flexible Disks with a Perpendicular Head",

abstract = "Perpendicular magnetic recording using a main-pole-driven perpendicular head was tested for the first time using electroless-plated flexible disks. Soft magnetic NiFeP films, also produced by electroless plating, were used as an underlayer of a perpendicular recording medium in this test. Two types of flexible double-layer media, composed of an electroless-plated CoNiReP film with two types of NiFeP underlayers with a coercivity of 2 and S.S Oe, developed in this study, were fabricated, and their recording characteristics were measured. A higher D50 value of 75 kFRPI was obtained for the medium with the 2-Oe underlayer. The output voltage for the medium with the softer magnetic 2-Oe underlayer was about twice as high as that for the medium with the 5.5-Oe underlayer.",

author = "Hiroshi Matsubara and Hirokazu Mizutani and Satoshi Mitamura and Tetsuya Osaka",

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T1 - Recording Characteristics of Electroless-Plated Perpendicular Recording Flexible Disks with a Perpendicular Head

AU - Matsubara, Hiroshi

AU - Mizutani, Hirokazu

AU - Mitamura, Satoshi

AU - Osaka, Tetsuya

PY - 1990/5

Y1 - 1990/5

N2 - Perpendicular magnetic recording using a main-pole-driven perpendicular head was tested for the first time using electroless-plated flexible disks. Soft magnetic NiFeP films, also produced by electroless plating, were used as an underlayer of a perpendicular recording medium in this test. Two types of flexible double-layer media, composed of an electroless-plated CoNiReP film with two types of NiFeP underlayers with a coercivity of 2 and S.S Oe, developed in this study, were fabricated, and their recording characteristics were measured. A higher D50 value of 75 kFRPI was obtained for the medium with the 2-Oe underlayer. The output voltage for the medium with the softer magnetic 2-Oe underlayer was about twice as high as that for the medium with the 5.5-Oe underlayer.

AB - Perpendicular magnetic recording using a main-pole-driven perpendicular head was tested for the first time using electroless-plated flexible disks. Soft magnetic NiFeP films, also produced by electroless plating, were used as an underlayer of a perpendicular recording medium in this test. Two types of flexible double-layer media, composed of an electroless-plated CoNiReP film with two types of NiFeP underlayers with a coercivity of 2 and S.S Oe, developed in this study, were fabricated, and their recording characteristics were measured. A higher D50 value of 75 kFRPI was obtained for the medium with the 2-Oe underlayer. The output voltage for the medium with the softer magnetic 2-Oe underlayer was about twice as high as that for the medium with the 5.5-Oe underlayer.

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Recording Characteristics of Electroless-Plated Perpendicular Recording Flexible Disks with a Perpendicular Head

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