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Manipulation of Magnetic Skyrmion Density in Continuous Ir/Co/Pt Multilayers

We show that magnetic skyrmions can be stabilised at room temperature in continuous [Ir/Co/Pt](5) multilayers on SiO(2)/Si substrates without the prior application of electric current or magnetic field. While decreasing the Co thickness, a transition of the magnetic domain patterns from worm-like st...

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Detalles Bibliográficos
Autores principales: Cubukcu, M., Pöllath, S., Tacchi, S., Stacey, A., Darwin, E., Freeman, C. W. F., Barton, C., Hickey, B. J., Marrows, C. H., Carlotti, G., Back, C. H., Kazakova, O.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693305/
https://www.ncbi.nlm.nih.gov/pubmed/36363931
http://dx.doi.org/10.3390/mi13111911
Descripción
Sumario:We show that magnetic skyrmions can be stabilised at room temperature in continuous [Ir/Co/Pt](5) multilayers on SiO(2)/Si substrates without the prior application of electric current or magnetic field. While decreasing the Co thickness, a transition of the magnetic domain patterns from worm-like state to separated stripes is observed. The skyrmions are clearly imaged in both states using magnetic force microscopy. The density of skyrmions can be significantly enhanced after applying the “in-plane field procedure”. Our results provide means to manipulate magnetic skyrmion density, further allowing for the optimised engineering of skyrmion-based devices.