دورية أكاديمية
Lifetime of coexisting sub-10 nm zero-field skyrmions and antiskyrmions
| العنوان: | Lifetime of coexisting sub-10 nm zero-field skyrmions and antiskyrmions |
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| المؤلفون: | Moritz A. Goerzen, Stephan von Malottki, Sebastian Meyer, Pavel F. Bessarab, Stefan Heinze |
| المصدر: | npj Quantum Materials, Vol 8, Iss 1, Pp 1-13 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Atomic physics. Constitution and properties of matter |
| مصطلحات موضوعية: | Materials of engineering and construction. Mechanics of materials, TA401-492, Atomic physics. Constitution and properties of matter, QC170-197 |
| الوصف: | Abstract 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2397-4648 |
| Relation: | https://doaj.org/toc/2397-4648 |
| DOI: | 10.1038/s41535-023-00586-3 |
| URL الوصول: | https://doaj.org/article/1dd016a6952c414e8a9eeece2fe7841f |
| رقم الأكسشن: | edsdoj.1dd016a6952c414e8a9eeece2fe7841f |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 23974648 |
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| DOI: | 10.1038/s41535-023-00586-3 |