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Dipolar skyrmions and antiskyrmions of arbitrary topological charge at room temperature

Physics

Dipolar skyrmions and antiskyrmions of arbitrary topological charge at room temperature

M. Hassan, S. Koraltan, et al.

This groundbreaking research by Mariam Hassan, Sabri Koraltan, and colleagues reveals the direct observation of dipolar skyrmions and antiskyrmions with varying topological charges in Co/Ni multilayers at room temperature. The study meticulously characterizes these unique spin objects, providing insights into their nucleation and stability crucial for future device innovations.

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Playback language: English
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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