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Lifetime of coexist...
Lifetime of coexisting sub-10 nm zero-field skyrmions and antiskyrmions
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- Goerzen, Moritz A. (författare)
- University of Kiel, Germany
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- von Malottki, Stephan (författare)
- University of Kiel, Germany;University of Iceland, Iceland;Dartmouth College, USA
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- Meyer, Sebastian (författare)
- University of Kiel, Germany;Nanomat/Q-mat/CESAM Université de Liège, Belgium
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- Bessarab, Pavel F., 1985- (författare)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE),University of Iceland, Iceland
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- Heinze, Stefan (författare)
- University of Kiel, Germany
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(creator_code:org_t)
- Nature Publishing Group, 2023
- 2023
- Engelska.
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Ingår i: npj Quantum Materials. - : Nature Publishing Group. - 2397-4648. ; 8:1
- Relaterad länk:
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https://doi.org/10.1...
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https://lnu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Magnetic skyrmions have raised high hopes for future spintronic devices. For many applications, it would be of great advantage to have more than one metastable particle-like texture available. The coexistence of skyrmions and antiskyrmions has been proposed in inversion-symmetric magnets with exchange frustration. However, so far only model systems have been studied and the lifetime of coexisting metastable topological spin structures has not been obtained. Here, we predict that skyrmions and antiskyrmions with diameters below 10 nm can coexist at zero magnetic field in a Rh/Co bilayer on the Ir(111) surface—an experimentally feasible system. We show that the lifetimes of metastable skyrmions and antiskyrmions in the ferromagnetic ground state are above one hour for temperatures up to 75 and 48 K, respectively. The entropic contribution to the nucleation and annihilation rates differs for skyrmions and antiskyrmions. This opens the route to the thermally activated creation of coexisting skyrmions and antiskyrmions in frustrated magnets with Dzyaloshinskii–Moriya interaction.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- Condensed Matter Physics
- Kondenserade materians fysik
Publikations- och innehållstyp
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- art (ämneskategori)
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