Extraordinary Bubbles in Epitaxial Garnet Films
- 1 January 1973
- conference paper
- Published by AIP Publishing
- p. 493-497
- https://doi.org/10.1063/1.2946943
Abstract
A method of producing extraordinary bubbles (EB's) in epitaxial garnet films is presented together with their static and dynamic properties. EB's can be produced by applying a number of pulse fields to strip domains through a loop conductor. The collapse fields of bubbles cut from these strip domains are distributed between the collapse field of ordinary bubbles (Ho) and a higher value of up to 1.4Ho for samples of composition ( EuEr ) 3 ( GaFe ) 5 O 12 . Also presented is an analysis of a domain wall structure model for EB's, in which a cylindrical domain wall is assumed to consist of N pairs of right‐ and left‐handed Bloch‐type sections connected with Néel‐type sections. By choosing suitable values for N, the model reproduces the static properties of EB's quite well.Keywords
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