Magnetic characteristics and recording properties of thin Co-CoO metal evaporated tapes

Authors
Xu, B Motohashi, K Onodera, S Doyle, WD
Citation
B. Xu et al., Magnetic characteristics and recording properties of thin Co-CoO metal evaporated tapes, IEEE MAGNET, 37(4), 2001, pp. 1630-1633
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
1630 - 1633
Database
ISI
SICI code
0018-9464(200107)37:4<1630:MCARPO>2.0.ZU;2-W
Abstract
A set of Co-CoO metal evaporated tapes were prepared with various O-2 flow rates. Recording tests determined the optimum flow rate and a second set of tapes were prepared at that flow rate with thickness from 33 mn to 103 mn. For thinner tapes the recording carrier to noise ratio is increased while the optimum recording current reduced. Remanence coercivity at 2 ns is abou t 30% higher than at 100 s and is independent of the thickness. Thermal sta bility is excellent down to the thinnest tape where KV/kT is still 170.