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Title: Tailoring magnetic vortices in nanostructures.
Authors: Garcia, Flávio
Westfahl Junior, Harry
Carvalho, Edson José de
Melo, Mariana Pojar de
Santos, Antonio Domingues dos
Schoenmaker, Jeroen
Seabra, Antonio Carlos
Belkhou, R.
Bendounan, A.
Novais, E. R. P.
Guimarães, A. P.
Issue Date: 2010
Citation: GARCIA, F. et al. Tailoring magnetic vortices in nanostructures. Applied Physics Letters, v. 97, n. 2, p. 022501, 2010. Disponível em: <>. Acesso em: 26 nov. 2012.
Abstract: Tailoring the properties of magnetic vortices through the preparation of structured multilayers is discussed. The dependence of the vortex core radius r on the effective anisotropy is derived within a simple model, which agrees with our simulations. As the perpendicular anisotropy increases, r also increases until a perpendicular magnetization appears in the disk rim. Co/Pt multilayer disks were studied; x-ray microscopy confirms qualitatively the predicted behavior. This is a favorable system for implementing vortex-based spin-transfer nano-oscillator devices, with enhanced rf power resulting both from the increase in the core size and synchronization afforded by the coupling of the Co layers.
ISSN: 10773118
metadata.dc.rights.license: O periódico Applied Physics Letters permite o depósito da versão PDF do editor em Repositório Institucional. Fonte: Sherpa/Romeo <>. Acesso em 21 nov. 2013.
Appears in Collections:DEFIS - Artigos publicados em periódicos

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