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Browse Journals & Magazines > Magnetics, IEEE Transactions ...> Volume:42 Issue:10 Help

Effects of Deposition Rate on Microstructure of CoCrPt-SiO _2 Granular Longitudinal Media for Tape Applications

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5 Author(s)
Lin Wang ; Dept. of Mater. Sci. & Eng., Carnegie Mellon Univ., Pittsburgh, PA ; Hwan-Soo Lee ; Qin, Yueling ; Bain, J.A.
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The microstructure of sputtered CoCrPt-SiO2 media for tape applications was investigated under different deposition rates. Plan-view and high-resolution cross-sectional TEMs were used to observe the media growth morphology and oxide phase separation behavior. Additionally, time-dependent magnetic property measurements were used for switching volume determination. Although plan-view TEM images suggested well-isolated, small grains, cross-sectional TEM images and switching volume measurements revealed magnetic interconnection between the apparent "grains" visible in the plan-view images. When the deposition rate was reduced from 0.28 to 0.05 nm/s, TEM images showed larger features in plan-view, which is consistent with greater time for atomic motion on the surface before burial. It was also observed in cross-sectional TEM images that columnar growth at the higher rate changed to spheres of metal in an SiO2 matrix at low deposition rate

Published in:
Magnetics, IEEE Transactions on  (Volume:42 ,  Issue: 10 )

Date of Publication: Oct. 2006

Page(s):
2306 - 2308
ISSN :
0018-9464
INSPEC Accession Number:
9116468
Digital Object Identifier :
10.1109/TMAG.2006.879644
Product Type:
Journals & Magazines
Date of Current Version :
25 September 2006
Issue Date :
Oct. 2006
Sponsored by :
IEEE Magnetics Society

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