DocumentCode
859784
Title
Bit-Percolation Studies on CoPtCr–SiO2 Perpendicular Magnetic-Recording Media
Author
Kitano, M. ; Miyashita, E. ; Hayashi, N. ; Takenoiri, S.
Author_Institution
Mater. Sci. & Adv. Devices, NHK Sci. & Tech. Res. Labs., Tokyo
Volume
43
Issue
6
fYear
2007
fDate
6/1/2007 12:00:00 AM
Firstpage
2094
Lastpage
2096
Abstract
Bit percolation degrades the performance of high-density perpendicular magnetic recording. The magnetic cluster size determines the limit of the recordable bit length. In order to examine the parameter, which influences the high-density recording characteristics, we have investigated the relationship between magnetic cluster size and the recording bit length at which bit percolation begins to occur in a CoPtCr-SiO2 perpendicular magnetic-recording medium to the range of 1500 kfci. Our experimental data indicate that the onset of bit percolation takes place at a recording bit length close to the magnetic cluster size of the medium
Keywords
Kerr magneto-optical effect; chromium alloys; cobalt alloys; magnetic force microscopy; percolation; perpendicular magnetic recording; platinum alloys; silicon compounds; CoPtCr-SiO2; Kerr hysteresis loop slope; bit percolation; high-density perpendicular magnetic-recording media; magnetic cluster size; magnetic force microscopy; recordable bit length; Degradation; Laboratories; Magnetic force microscopy; Magnetic hysteresis; Magnetic noise; Magnetic properties; Magnetic recording; Magnetization; Materials science and technology; Perpendicular magnetic recording; Bit percolation; CoPtCr–SiO$_{2}$
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2007.892872
Filename
4202801
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