DocumentCode
860596
Title
Measurements and modelling of noise in DC-erased thin-film media
Author
Vos, Martin J. ; Tanaka, Yoichiro ; Judy, Jack H.
Author_Institution
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Volume
26
Issue
5
fYear
1990
fDate
9/1/1990 12:00:00 AM
Firstpage
2149
Lastpage
2151
Abstract
Experimental and theoretical results are given for the noise produced in thin-film media after reverse DC erasure. The noise spectra produced at high bit densities and at reverse DC erasure around the remanent coercivity look identical. A theoretical spectral model based on Poisson statistics shows a good fit with the measured noise spectra. A novel technique for measuring the medium noise in the spatial domain has been developed. The results obtained in the spatial domain through autocorrelation of the read flux agree well with the noise results obtained in the spectral domain
Keywords
magnetic recording; modelling; noise; DC-erased thin-film media; Poisson statistics; autocorrelation; modelling; noise; read flux; remanent coercivity; spatial domain; theoretical spectral model; Bandwidth; Coercive force; Magnetic field measurement; Magnetic heads; Magnetic materials; Magnetic noise; Micromagnetics; Noise measurement; Transistors; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.104650
Filename
104650
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