O'Brien, L. O., Beguivin, A., Petit, D., Fernandez-Pacheco, A., Read, Daniel ![]() |
Abstract
The interaction of two domain walls (DWs) at a cross-shaped vertex fabricated from two ferromagnetic nanowires has been experimentally investigated. Both magnetostatically repulsive and attractive interactions have been probed. It is found that in the repulsive case, a passing DW may directly induce the depinning of another that is already pinned at a vertex. This effect can be qualitatively described by considering only simple, magnetostatic-charge-based arguments. In the attractive case, however, asymmetric pinning is found, with complete suppression of depinning possible. This observed effect is contrary to simple charge-based arguments and highlights the need for full micromagnetic characterization of the DW interactions in more complex systems.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QC Physics |
Publisher: | The Royal Society |
ISSN: | 1364-503X |
Last Modified: | 24 Oct 2022 10:51 |
URI: | https://orca.cardiff.ac.uk/id/eprint/46147 |
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