HCP structured CoCrMn underlayer for Co-based longitudinal magnetic recording media

Author

Song, Hajung ; Hong, Soo-Youl ; Kwon, Soon-Ju ; Lee, Taek-Dong ; Shin, Kyung-Ho

Author_Institution

Thin Film Technol. Res. Center, Korea Inst. of Sci. & Technol., Seoul, South Korea

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2300

Lastpage

2302

Abstract

Nonmagnetic hcp CoCrMn alloy was investigated with a view of new underlayer for CoCrPt longitudinal magnetic recording media. Magnetic properties and crystallographic textures of CoCrPt/CoCrMn thin films were compared with those of CoCrPt/Cr thin films. Only Co (10.0) and (11.0) peaks were observed in CoCrPt/CoCrMn thin films deposited on glass substrates without any bcc-type underlayer. CoCrPt/CoCrMn thin films showed higher coercivity and narrower grain size distribution than CoCrPt/Cr thin films prepared under same conditions. CoCrPt/CoCrMn thin films showed better lattice matching and grain-to-grain growth than CoCrPt/Cr thin films and no transition layer between a magnetic layer and an underlayer

Keywords

chromium alloys; cobalt alloys; coercive force; crystal structure; grain size; magnetic recording; magnetic thin films; manganese alloys; Co-based longitudinal magnetic recording media; CoCrMn; CoCrPt; HCP structured CoCrMn underlayer; grain-to-grain growth; higher coercivity; lattice matching; narrower grain size distribution; Chromium; Coercive force; Crystallography; Glass; Grain size; Magnetic films; Magnetic properties; Magnetic recording; Sputtering; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908408

Filename

908408