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Abstract
This work reports the direct observation of dipolar skyrmions and antiskyrmions with arbitrary topological charge in Co/Ni multilayers at room temperature. The authors explore these spin objects with topological charges up to 10, characterizing their nucleation, energy dependence on charge, and the effect of material parameters on stability. Micromagnetic simulations demonstrate spin-transfer-induced motion, crucial for device applications.
Publisher
Nature Physics
Published On
Jan 25, 2024
Authors
Mariam Hassan, Sabri Koraltan, Aladin Ullrich, Florian Bruckner, Rostyslav O. Serha, Khrystyna V. Levchenko, Gaspare Varvaro, Nikolai S. Kiselev, Michael Heigl, Claas Abert, Dieter Suess, Manfred Albrecht
Tags
dipolar skyrmions
antiskyrmions
topological charge
Co/Ni multilayers
spin dynamics
micromagnetic simulations
device applications

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