Feasibility of discrete track perpendicular media for high track density recording

Author

Soeno, Yoshikazu ; Moriya, Makoto ; Ito, Kuniyasu ; Hattori, Kazuhiro ; Kaizu, Akimasa ; Aoyama, Tsutomu ; Matsuzaki, Mikio ; Sakai, Hiroshi

Author_Institution

Inf. Technol. Res. Center, TDK Corp., Nagano, Japan

Volume

39

Issue

4

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

1967

Lastpage

1971

Abstract

The feasibility of discrete track media with perpendicular anisotropy for high track density is studied. The discrete tracks are separated physically and magnetically by the grooves. The actual media was fabricated to evaluate the basic write/read properties. The measurements have been done with a spin stand. As a result, discrete track media showed a better write efficiency and recorded signal separation between the adjacent tracks compared to the conventional continuous recording layer media. It indicates the potential of this media for high track density recording.

Keywords

crosstalk; magnetic force microscopy; magnetic heads; perpendicular magnetic anisotropy; perpendicular magnetic recording; CoCrPt; crosstalk; discrete track perpendicular media; grooves; high track density recording; magnetic force microscope images; magnetic head; magnetic separation; perpendicular anisotropy; physical separation; recorded signal separation; spin stand; write efficiency; write/read properties; Disk recording; Fluctuations; High definition video; Indium tin oxide; Magnetic heads; Magnetic recording; Magnetic separation; Perpendicular magnetic recording; Servomechanisms; Soft magnetic materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.813753

Filename

1211167