DocumentCode
1461571
Title
Effect of secondary gaps in near-saturated metal-in-gap video heads
Author
Mapps, Desmond J. ; Shute, Hazel A. ; Wilton, David T.
Author_Institution
Dept. of Commun. & Electron. Eng., Plymouth Univ., UK
Volume
36
Issue
6
fYear
2000
fDate
11/1/2000 12:00:00 AM
Firstpage
3991
Lastpage
3996
Abstract
Secondary gaps between the ferrite bulk and the Sendust (AlFeSi alloy) shim may occur in metal-in-gap (MIG) heads. Finite-element models are used to explore the effect that these gaps have on the read/write characteristics of single- and double-sided MIG heads. The presence of a secondary gap is shown to cause an additional peak in the writing field and oscillations in the magnitude of the response during replay. The field and response of a double-sided MIG head is affected more than those of the corresponding single-sided MIG head
Keywords
ferrite devices; finite element analysis; magnetic heads; video recording; AlFeSi; double-sided MIG heads; finite-element models; near-saturated metal-in-gap video heads; read/write characteristics; replay; secondary gap; secondary gaps; single-sided MIG heads; writing field; Coercive force; Ferrites; Finite element methods; Magnetic flux; Magnetic heads; Magnetic materials; Magnetic recording; Manufacturing; Saturation magnetization; Writing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.914352
Filename
914352
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