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| Título: | A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex |
Autor: | Gilbert, Dustin A.; Varea, Aïda; López-Barbera, José Francisco CSIC; Hoffmann, Axel; Sort, Jordi CSIC ORCID; Nogués, Josep CSIC ORCID | Fecha de publicación: | 2015 | Editor: | Royal Society of Chemistry (UK) | Citación: | Nanoscale 7(21): 9878-9885 (2015) | Resumen: | Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications. In addition, the exchange coupling of magnetic vortices to antiferromagnets has also been shown to lead to a range of novel phenomena and functionalities. Here we report a new magnetization reversal mode of magnetic vortices in exchange coupled Ir20Mn80/Fe20Ni80 microdots: distorted viscous vortex reversal. In contrast to the previously known or proposed reversal modes, the vortex is distorted close to the interface and viscously dragged due to the uncompensated spins of a thin antiferromagnet, which leads to unexpected asymmetries in the annihilation and nucleation fields. These results provide a deeper understanding of the physics of exchange coupled vortices and may also have important implications for applications involving exchange coupled nanostructures. | Descripción: | This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.-- et al. | Versión del editor: | http://dx.doi.org/10.1039/C5NR01856K | URI: | http://hdl.handle.net/10261/131543 | DOI: | 10.1039/C5NR01856K | Identificadores: | doi: 10.1039/C5NR01856K issn: 2040-3364 e-issn: 2040-3372 |
| Aparece en las colecciones: | (CIN2) Artículos |
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| viscousvortex.pdf | 5,82 MB | Adobe PDF |  Visualizar/Abrir |
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Este item está licenciado bajo una Licencia Creative Commons
