DocumentCode
1047963
Title
Bubble domains in cobalt
Author
Grundy, Philip J. ; Hothersall, David C. ; Jones, Grenville A. ; Middleton, Barry K. ; Tebble, Robert S.
Author_Institution
University of Salford, Lancs., England
Volume
7
Issue
3
fYear
1971
fDate
9/1/1971 12:00:00 AM
Firstpage
483
Lastpage
486
Abstract
The domain structures in thin single crystal foils of electropolished cobalt with the
axis normal to the plane have been observed by Lorentz electron microscopy. After the application of fields in the range of 5-25 kOe along the
axis, hexagonal arrays of cylindrical bubble domains were observed together with the more familiar plate-domain structure. The bubble structure was stable in the remanent state. Details of the magnetization configuration of the bubble together with measured dimensions are presented. The results are discussed in the light of calculation which shows that the energy of a hexagonal array of bubbles is a little higher than that of the plate domain structure. The bubble diameter is also calculated as a function of thickness.
axis normal to the plane have been observed by Lorentz electron microscopy. After the application of fields in the range of 5-25 kOe along the
axis, hexagonal arrays of cylindrical bubble domains were observed together with the more familiar plate-domain structure. The bubble structure was stable in the remanent state. Details of the magnetization configuration of the bubble together with measured dimensions are presented. The results are discussed in the light of calculation which shows that the energy of a hexagonal array of bubbles is a little higher than that of the plate domain structure. The bubble diameter is also calculated as a function of thickness.Keywords
Cobalt; Magnetic bubble materials; Anisotropic magnetoresistance; Cobalt; Demagnetization; Electron microscopy; High K dielectric materials; Magnetic field measurement; Magnetic fields; Magnetization; Optical arrays; Remanence;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1971.1067216
Filename
1067216
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