Rapidly annealed hexagonal ferrite thin films for recording medium

Authors
Morisako, A Kubono, T Matsumoto, M Naoe, M
Citation
A. Morisako et al., Rapidly annealed hexagonal ferrite thin films for recording medium, IEEE MAGNET, 36(5), 2000, pp. 2339-2341
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
36
Issue
5
Year of publication
2000
Part
1
Pages
2339 - 2341
Database
ISI
SICI code
0018-9464(200009)36:5<2339:RAHFTF>2.0.ZU;2-1
Abstract
Bi added Ba-ferrite thin films were prepared at room temperature with diffe rent Bi composition, and successively annealed in a vacuum to crystallize. The addition of Bi is effective in reducing the grain size. The M-s, N-c an d grain size for Bi-BaM films were about 150 emu/cm(3),4 kOe and 40 nm, res pectively, after annealing at 750 C for 30 seconds. A recording density D-5 0 Of 130 kfrpi was obtained with Bi-BaM thin film disk with the film thickn ess of 100 nm.