Beyond the compact magnetic domain wall

Domain wall dynamics in wide submicrometer wires is investigated to understand the fundamental mechanisms that limit wall mobility, both experimentally by magneto-optical Kerr effect and by micromagnetic simulations. It is found that the dynamic domain wall structure departs significantly from the c...

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Bibliographic Details
Published in:Physical review letters 2011-11, Vol.107 (20), p.207204-207204, Article 207204
Main Authors: Zinoni, C, Vanhaverbeke, A, Eib, P, Salis, G, Allenspach, R
Format: Article
Language:English
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Summary:Domain wall dynamics in wide submicrometer wires is investigated to understand the fundamental mechanisms that limit wall mobility, both experimentally by magneto-optical Kerr effect and by micromagnetic simulations. It is found that the dynamic domain wall structure departs significantly from the current description of a compact entity when evolving along the wire. The wall is composed of several substructures, each one propagating and evolving in a different dynamic regime with very different velocities.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.107.207204