Skyrmion-like states in multilayer exchange coupled ferromagnetic nanostructures with distinct anisotropy directions
A.A. Fraerman, O.L.Ermolaeva, E.V.Skorohodov, N.S.Gusev, V.L.Mironov,, S.N.Vdovichev, E.S.Demidov
TL;DR
This paper reports the experimental discovery of skyrmion-like magnetic states in multilayer ferromagnetic nanostructures with exchange coupling, revealing two distinct formation modes influenced by anisotropy strength.
Contribution
It demonstrates the existence of skyrmion-like states in patterned multilayer nanostructures with exchange coupling and distinct anisotropy directions, supported by experiments and simulations.
Findings
Skyrmion-like states observed in ferromagnetic nanostructures.
Two different skyrmion formation modes depend on anisotropy magnitude.
Experimental and simulation results confirm the states' characteristics.
Abstract
We report the experimental observation of magnetic skyrmion-like states in patterned ferromagnetic nanostructures consisting of perpendicular magnetized Co/Pt multilayer film exchange coupled with Co nanodisks in vortex state. The magnetic force microscopy and micromagnetic simulations show that depending on the magnitude of Co/Pt perpendicular anisotropy in these systems two different modes of skyrmion formation are realized.
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