The observation of domain structure in bubble propagation circuits
- 1 October 1978
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 11 (14), L165-L169
- https://doi.org/10.1088/0022-3727/11/14/004
Abstract
The generation, propagation and detection of bubble domains in conventional field access bubble devices is controlled by changes in the domain structure of the Permalloy overlay elements in a rotating magnetic field. A technique for observing related changes using Lorentz microscopy is described and some results obtained for specimens taken from a T and I bar overlay structure and subjected to small DC magnetic fields are discussed. In suitable cases the technique could be extended to situations where the interaction of the bubble domains and the overlay might be observed.Keywords
This publication has 5 references indexed in Scilit:
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- Models for I and T pattern permalloy bars based upon bitter pattern observation of domain wall movementsIEEE Transactions on Magnetics, 1976
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- Observation of bubble domains in the high voltage electron microscopeJournal of Microscopy, 1973