Title :
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
fDate :
9/1/2000 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
