Magnetization distributions, magnetostatic energy barriers, and drive fields for Permalloy bars
- 1 January 1973
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 44 (1), 444-448
- https://doi.org/10.1063/1.1661902
Abstract
In an effort to understand more completely the operation of field‐access bubble‐domain propagation circuits, the analysis of Copeland for Permalloy thin‐film elements is generalized to include the effects of a uniform in‐plane drive field and applied to the problem of bubble motion along a simple bar. Results are presented for the magnetization distributions in a bar for various bubble positions and drive field situations along with the corresponding magnetostatic energy wells. The structural and spacing (Permalloy to garnet) dependence of the drive fields and the choice of garnet thickness are examined with an eye toward device optimization.Keywords
This publication has 10 references indexed in Scilit:
- Magnetostatic potential wells and drive fields in field access bubble domain drive circuitsApplied Physics Letters, 1972
- Magnetization of Small Permalloy Circuit ElementsJournal of Applied Physics, 1972
- Functional speed measurements of propagating devices utilizing cylindrical domains in orthoferrites and garnetsIEEE Transactions on Magnetics, 1971
- Permalloy Rail-Cylindrical Magnetic Domain SystemsJournal of Applied Physics, 1971
- Single-Conductor Magnetic-Bubble Propagation CircuitsJournal of Applied Physics, 1971
- Application of orthoferrites to domain-wall devicesIEEE Transactions on Magnetics, 1969
- Propagation of cylindrical magnetic domains in orthoferritesIEEE Transactions on Magnetics, 1969
- Demagnetizing and Stray Fields of Elliptical FilmsJournal of Applied Physics, 1966
- Ferromagnetic Films in Nonuniform FieldsPhysica Status Solidi (b), 1966
- Demagnetizing Field in Nonellipsoidal BodiesJournal of Applied Physics, 1965