ECR-sputter-deposited Co-Cr-Ta perpendicular recording disk

Journal of Magnetics Society of Japan Volume 23 Issue S2(Supplement) Page 55-58

published_at 1999

Title

ECRスパッタ法で作製したCo-Cr-Ta垂直磁気ディスク

Creators Yamamoto Setsuo

Creators 池田朋広

Creators 平田京

Creators Kurisu Hiroki

Creators 松浦満

Creator Keywords

ECR sputtering Co-Cr-Ta perpendicular magnetic recording

Sputtering method utilizing electron-cyclotron-resonance microwave plasma was used to fabricate Co-Cr-Ta perpendicular magnetic recording disks. Ta addition was proved to be effective to increase coercivity and squareness in perpendicular direction of magnetic layer. A perpendicular recording disk with 60 nm thick Co-Cr-Ta layer showed superior signal-to-media noise ratio to a 4 Gb/in^2 longitudinal disk at densities higher than 90 kFRPI. Ti underlayer was effective to improve perpendicular orientation, and increase coercivity, squareness, high-density recording characteristics.

Languages jpn

Resource Type journal article

Publishers 日本応用磁気学会

Date Issued 1999

File Version Not Applicable (or Unknown)

Access Rights metadata only access

Relations

[ISSN]0285-0192

[NCID]AN0031390X

[isVersionOf] [URI]http://www.wdc-jp.com/msj/journal/index.html

Schools 大学院理工学研究科（工学）