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Applied Physics Letters
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Suppression of hard bubbles by a thin Permalloy layer

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Abstract

We show experimentally that, by placing a thin Permalloy layer in intimate contact with a garnet film, hard bubbles can be suppressed. The suppression is due to exchange coupling between the Permalloy layer and the bubble walls. When the Permalloy layer is separated from the garnet film by a thin insulation layer, intermediate bubbles are observed. © 1973 American Institute of Physics.

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Applied Physics Letters

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