Annealing effects on recording characteristics of CoCr-alloy perpendicularmagnetic recording media

Authors
Hirayama, Y Honda, Y Kikukawa, A Futamoto, M
Citation
Y. Hirayama et al., Annealing effects on recording characteristics of CoCr-alloy perpendicularmagnetic recording media, J APPL PHYS, 87(9), 2000, pp. 6890-6892
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
87
Issue
9
Year of publication
2000
Part
3
Pages
6890 - 6892
Database
ISI
SICI code
0021-8979(20000501)87:9<6890:AEORCO>2.0.ZU;2-W
Abstract
Annealing effects of CoCrTa and CoCrPt perpendicular magnetic recording med ia have been investigated. The coercivity and the squareness increase by po stannealing when the annealing temperature is higher than 450 degrees C and CoCr35/TiCr10 dual underlayer is employed. The CoCr35 underlayer suppresse s Ti diffusion to the magnetic layer and provides Cr up to the magnetic lay er. The signal-to-noise ratio is improved and the magnetization irregularit y diameter observed by magnetic force microscopy (MFM) decreases by the pos tannealing treatment. (C) 2000 American Institute of Physics. [S0021-8979(0 0)70108-3].