Electrical detection of individual skyrmions in graphene devices
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Título: | Electrical detection of individual skyrmions in graphene devices |
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Autor/es: | Finocchiaro, Francesca | Lado, Jose L. | Fernández-Rossier, Joaquín |
Grupo/s de investigación o GITE: | Grupo de Nanofísica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | Conductivity | Skyrmions |
Área/s de conocimiento: | Física de la Materia Condensada |
Fecha de publicación: | 9-oct-2017 |
Editor: | American Physical Society |
Cita bibliográfica: | Physical Review B. 2017, 96: 155422. doi:10.1103/PhysRevB.96.155422 |
Resumen: | We study a graphene Hall probe located on top of a magnetic surface as a detector of skyrmions, using as a working principle the anomalous Hall effect produced by the exchange interaction of the graphene electrons with the noncoplanar magnetization of the skyrmion. We study the magnitude of the effect as a function of the exchange interaction, skyrmion size, and device dimensions. Our calculations for multiterminal graphene nanodevices, working in the ballistic regime, indicate that for realistic exchange interactions a single skyrmion would give Hall voltages well within reach of the experimental state of the art. The proposed device could act as an electrical transducer that marks the presence of a single skyrmion in a nanoscale region, paving the way towards the integration of skyrmion-based spintronics and graphene electronics. |
Patrocinador/es: | The authors acknowledge financial support by Marie-Curie-ITN 607904-SPINOGRAPH. J.F.-R. acknowledges financial supported by MEC-Spain (FIS2013-47328-C2-2-P and MAT2016-78625-C2) and Generalitat Valenciana (ACOMP/2010/070), Prometeo, by ERDF funds through the Portuguese Operational Program for Competitiveness and Internationalization COMPETE 2020, and National Funds through FCT, the Portuguese Foundation for Science and Technology, under Project No. PTDC/FIS-NAN/4662/2014 (016656). This work has been financially supported in part by FEDER funds. |
URI: | http://hdl.handle.net/10045/86547 |
ISSN: | 2469-9950 (Print) | 2469-9969 (Online) |
DOI: | 10.1103/PhysRevB.96.155422 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | ©2017 American Physical Society |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1103/PhysRevB.96.155422 |
Aparece en las colecciones: | INV - Grupo de Nanofísica - Artículos de Revistas |
Archivos en este ítem:
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2017_Finocchiaro_etal_PhysRevB.pdf | 1,57 MB | Adobe PDF | Abrir Vista previa | |
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