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Kinetic depinning of a magnetic domain wall above the Walker field

Lewis, E. R., Petit, D., O'Brien, L., Jausovec, A. V., Zeng, H. T., Read, Daniel ORCID: and Cowburn, R. P. 2011. Kinetic depinning of a magnetic domain wall above the Walker field. Applied Physics Letters 98 (4) , 042502. 10.1063/1.3543844

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The dynamical interaction between a transverse domain wall and a T-shaped trap is investigated, for domain wall motion in the oscillatory regime above the Walker field. We demonstrate experimentally the existence of distinct static and kinetic depinning fields in this regime, and show that the oscillatory motion of the domain wall leads to a distribution of kinetic depinning fields. Micromagnetic simulations are in good qualitative agreement with our experimental results.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Additional Information: 3 pages.
Publisher: American Institute of Physics
ISSN: 0003-6951
Last Modified: 18 Oct 2022 14:05

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