Magnetic and crystallographic properties of Co-Cr-Pt longitudinal media prepared on MgO seedlayers deposited by ECR sputtering

Author

Inaba, Nobuyuki ; Futamoto, Masaaki

Author_Institution

Tsukuba Res. Lab., Hitachi Maxell Ltd., Ibaraki, Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2372

Lastpage

2374

Abstract

Crystallographic and magnetic properties are investigated for Co-Cr-Pt/Cr-Ti longitudinal media fabricated on MgO seedlayers (t=0-20 nm) prepared by Electron Cyclotron Resonance (ECR) sputtering method. The MgO layer deposited at room temperature shows well developed {100} texture. Highly (100)-oriented Cr-Ti and (11.0)-oriented Co-Cr-Pt layers are epitaxially grown on the seedlayers. The media coercivity is enhanced by about 15% compared with that with no MgO seedlayer

Keywords

X-ray diffraction; chromium alloys; cobalt alloys; coercive force; crystal microstructure; ferromagnetic materials; magnetic epitaxial layers; magnetic recording; platinum alloys; sputtered coatings; texture; transmission electron microscopy; (100)-oriented Cr-Ti; (11.0)-oriented Co-Cr-Pt layers; 0 to 20 nm; 300 K; Co-Cr-Pt longitudinal media; Co-Cr-Pt/Cr-Ti longitudinal media; ECR sputtering; MgO; MgO layer; MgO seedlayers; MgO-CoCrPt-CrTi; crystallographic properties; electron cyclotron resonance sputtering method; epitaxial growth; magnetic properties; media coercivity; Argon; Cathodes; Crystallography; Cyclotrons; Electrons; Magnetic properties; Magnetic resonance; Radio frequency; Sputtering; Substrates;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908434

Filename

908434