Durability of thermally assisted magnetic recording disk

Author

Nagata, Kenjiro ; Kawakubo, Youichi ; Kato, Daisuke ; Sugiyama, Takeshi

Author_Institution

Dept. of Production Syst. Eng., Shinshu Univ., Nagano, Japan

fYear

2002

fDate

27-29 Aug. 2002

Abstract

Thermally assisted magnetic recording (TAMR) systems uses magneto-optical technology in writing and magnetic recording technology in reading. In this system, spacing between a head and a disk must be reduced to achieve high recording density. Therefore, we have to study the durability of TAMR disks. For this purpose, we studied the effects of disk overcoat and underlayer materials on the durability of TAMR disks using a transparent pin-on-disk wear test. We found that TAMR disks with thin SiN/sub x/ or Ti under layer with a carbon overcoat had high durability.

Keywords

disc drives; hard discs; magneto-optical recording; wear resistant coatings; wear testing; SiN/sub x/-TbFeCo-C; TAMR; Ti-TbFeCo-C; disk overcoat; durability; hard-disk drive; magnetic recording reading technology; magneto-optical writing technology; thermally assisted magnetic recording disk; transparent pin-on-disk wear test; underlayer materials; Disk recording; Heat-assisted magnetic recording; Magnetic heads; Magnetic materials; Magnetic recording; Magnetooptic effects; Magnetooptic recording; Materials testing; Silicon compounds; Writing;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetic Recording Conference, 2002. Digest of the Asia-Pacific

Conference_Location

Singapore

Print_ISBN

0-7803-7509-2

Type

conf

DOI

10.1109/APMRC.2002.1037667

Filename

1037667