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Title

Deterministic propagation of vortex-antivortex pairs in magnetic trilayers

AuthorsHierro-Rodríguez, A. ; Quirós, Carlos ; Sorrentino, Andrea; Valcárcel, Ricardo; Estébanez, Irene; Álvarez-Prado, L. M. ; Martín, José Ignacio ; Alameda, J. M. ; Pereiro, Eva; Vélez, María ; Ferrer, S.
Issue Date2017
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 110(26): 262402 (2017)
AbstractThin perpendicular magnetic anisotropy films between two soft ferromagnetic layers have the nuclei for magnetization inversion at the bifurcations of their characteristic stripe domain pattern. The inverted nuclei induce vortex-antivortex pairs in the soft magnetic layers that exhibit a correlated motion extending several μm along the magnetic stripes during magnetization reversal. The sense of motion is completely determined by the topology of the magnetic bifurcations causing vortex-antivortex pairs to propagate in opposite senses depending on their polarities. This is a robust effect that might have practical applications. These findings are based on X-ray microscopy and micromagnetic calculations.
Publisher version (URL)https://doi.org/10.1063/1.4984898
URIhttp://hdl.handle.net/10261/173519
Identifiersdoi: 10.1063/1.4984898
issn: 0003-6951
e-issn: 1077-3118
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