DocumentCode :
951845
Title :
A study of bubble stability range in T-bar and chevron circuits
Author :
Orihara, S. ; Hirano, A.
Author_Institution :
Fujitsu Laboratories Ltd., Kawasaki, Japan
Volume :
10
Issue :
3
fYear :
1974
fDate :
9/1/1974 12:00:00 AM
Firstpage :
836
Lastpage :
839
Abstract :
The dependence of the operating bias range for T-bar and chevron propagation patterns upon the thickness of spacing layers, and also upon the thickness and 4 ΠMs of garnet films, is measured and discussed using a simple model neglecting the effects of bubble field. The potential well, which a bubble experiences under the Permalloy elements, is determined by the vertical component of the Permalloy field averaged along the domain wall and does not depend upon 4 ΠMs. The upper and lower thresholds of the bias range for quasistatic propagation are so treated as to be the bias fields which causes the critical diameter of the bubble to stretch across the pattern gaps or along the bars. The model neglecting the effects of the bubble field is believed to be sufficient to explain the experimental data.
Keywords :
Magnetic bubble circuits; Bars; Circuit stability; Garnet films; Magnetic analysis; Magnetic field measurement; Potential well; Saturation magnetization; Sputter etching; Stability analysis; Thickness measurement;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1974.1058386
Filename :
1058386
Link To Document :
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