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Near-Field interaction between domain walls in adjacent permalloy nanowires

O'Brien, L., Petit, D., Zeng, H. T., Lewis, E. R., Sampaio, J., Jausovec, A., Read, Daniel ORCID: and Cowburn, R. P. 2009. Near-Field interaction between domain walls in adjacent permalloy nanowires. Physical Review Letters 103 (7) , 077206. 10.1103/PhysRevLett.103.077206

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The magnetostatic interaction between two oppositely charged transverse domain walls (TDWs) in adjacent Permalloy nanowires is experimentally demonstrated. The dependence of the pinning strength on wire separation is investigated for distances between 13 and 125 nm. The results can be described fully by considering the distribution of magnetic charge within rigid, isolated TDWs. Alternative DW internal structure cannot reproduce this observed dependence. Modeling suggests the TDW internal structure is not appreciably disturbed, and remains rigid although the pinning strength is significant.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: American Physical Society
ISSN: 0031-9007
Last Modified: 17 Oct 2022 10:12

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