Improvement of perpendicular magnetic properties by postannealing for M′-CoCrPt-M stacked media (M, M′ = Ti, Ta, Ru, Pt, CrMn, MnSi)

Shin Saito; Norikazu Itagaki; Migaku Takahashi

doi:10.1109/TMAG.2004.830160

Improvement of perpendicular magnetic properties by postannealing for M′-CoCrPt-M stacked media (M, M′ = Ti, Ta, Ru, Pt, CrMn, MnSi)

Shin Saito, Norikazu Itagaki, Migaku Takahashi

ENG - Electronic Engineering

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

5 Citations (Scopus)

Abstract

In this paper, we discuss the effect of postannealing on magnetic properties and microstructure for CoCr-based perpendicular recording media. Material investigation for cap- and under-layers of the postannealed media is carried out, and significant improvement of magnetic properties is confirmed for the media with both titanium cap- and under-layers. This is caused by decoupling of magnetic exchange interaction among grains due to diffusion of Ti into the grain boundaries and by elimination of the nanocrystalline initial layer that behaves like a soft magnetic layer.

Original language	English
Pages (from-to)	2467-2469
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	40
Issue number	4 II
DOIs	https://doi.org/10.1109/TMAG.2004.830160
Publication status	Published - 2004 Jul

Keywords

CoCr-based perpendicular media
Exchange coupling
Postannealing
Titanium

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2004.830160

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abstract = "In this paper, we discuss the effect of postannealing on magnetic properties and microstructure for CoCr-based perpendicular recording media. Material investigation for cap- and under-layers of the postannealed media is carried out, and significant improvement of magnetic properties is confirmed for the media with both titanium cap- and under-layers. This is caused by decoupling of magnetic exchange interaction among grains due to diffusion of Ti into the grain boundaries and by elimination of the nanocrystalline initial layer that behaves like a soft magnetic layer.",

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AU - Saito, Shin

AU - Itagaki, Norikazu

AU - Takahashi, Migaku

PY - 2004/7

Y1 - 2004/7

N2 - In this paper, we discuss the effect of postannealing on magnetic properties and microstructure for CoCr-based perpendicular recording media. Material investigation for cap- and under-layers of the postannealed media is carried out, and significant improvement of magnetic properties is confirmed for the media with both titanium cap- and under-layers. This is caused by decoupling of magnetic exchange interaction among grains due to diffusion of Ti into the grain boundaries and by elimination of the nanocrystalline initial layer that behaves like a soft magnetic layer.

AB - In this paper, we discuss the effect of postannealing on magnetic properties and microstructure for CoCr-based perpendicular recording media. Material investigation for cap- and under-layers of the postannealed media is carried out, and significant improvement of magnetic properties is confirmed for the media with both titanium cap- and under-layers. This is caused by decoupling of magnetic exchange interaction among grains due to diffusion of Ti into the grain boundaries and by elimination of the nanocrystalline initial layer that behaves like a soft magnetic layer.

KW - CoCr-based perpendicular media

KW - Exchange coupling

KW - Postannealing

KW - Titanium

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 II

ER -

Improvement of perpendicular magnetic properties by postannealing for M′-CoCrPt-M stacked media (M, M′ = Ti, Ta, Ru, Pt, CrMn, MnSi)

Abstract

Keywords

ASJC Scopus subject areas

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