Wall structure changes in low-loss magnetic bubble materials

Transitions between underdamped and overdamped radial motion in magnetic bubble domains are investigated in a low-loss rare-earth garnet material. Three distinct types of domain wall structures, which are present during underdamped motion, have been identified. Bubble walls were subjected to a bias...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1977-09, Vol.13 (5), p.1348-1350
Main Authors: MacNeal, B., Humphrey, F.
Format: Article
Language:English
Subjects:
Cameras
Garnets
Magnetic domain walls
Magnetic domains
Magnetic materials
Monitoring
Optical microscopy
Pulse measurements
Sampling methods
Testing
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Summary:Transitions between underdamped and overdamped radial motion in magnetic bubble domains are investigated in a low-loss rare-earth garnet material. Three distinct types of domain wall structures, which are present during underdamped motion, have been identified. Bubble walls were subjected to a bias field pulse ( H ) and tested for underdamped motion sometime (τ) later. The first type of structure follows the form H = H' \exp (\tau/\tau_{0}) , with 170 nsec < \tau_{0}
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.1977.1059569