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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, conducted by Mariam Hassan and colleagues, reveals the direct observation of dipolar skyrmions and antiskyrmions in Co/Ni multilayers at room temperature, pushing the boundaries of spintronics. The study delves into topological charges, their energy dependencies, and stability factors, showcasing exciting potential for device applications through micromagnetic simulations.

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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 topological charge, and the impact of material parameters on stability. Micromagnetic simulations demonstrate spin-transfer-induced motion, highlighting their potential 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
micromagnetic simulations
spin-transfer motion
device applications
material parameters

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