Dual layer magnetic recording media: a pathway for improving the magnetic and performance characteristics of the storage medium

Author

Marinero, Emesto E. ; Do, Hoa ; Fullerton, Eric E. ; Schabes, Manfred ; Taratorin, Alex ; Rosen, Hai

Author_Institution

San Jose Res. Center, Hitachi GST, San Jose, CA, USA

fYear

2005

fDate

4-8 April 2005

Firstpage

1735

Lastpage

1736

Abstract

In this paper, significant improvements in recording media performance were obtained by utilizing ferromagnetically exchanged coupled bilayers. Two quaternary alloys (CoPtCrTa and CoPtCrB) were employed to achieve high performance recording layer. The net magnetic properties and recording alloy performance were optimized by controlling the thickness ratio.

Keywords

boron alloys; chromium alloys; cobalt alloys; coercive force; ferromagnetic materials; interface magnetism; magnetic recording; platinum alloys; tantalum alloys; CoPtCrTa-CoPtCrB; dual layer magnetic recording media; ferromagnetically exchanged coupled bilayers; magnetic storage medium; net magnetic properties; quaternary alloys; recording alloy performance; recording layer; recording media performance; thickness ratio; Crystal microstructure; Crystallization; Lattices; Magnetic anisotropy; Magnetic films; Magnetic materials; Magnetic properties; Magnetic recording; Material storage; Perpendicular magnetic anisotropy;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464301

Filename

1464301