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Title: Effect of planar anisotropy in vortex configuration of micro-scale disks
Title of periodic: Physics Procedia
Authors: Parreiras, S. O.
Martins, Maximiliano Delany
Affiliation: Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasil
Issue Date: 2015
Keywords: Magnetic fields;Atomic force microscopy;Magnetic microscopy
Abstract: The magnetic configuration of micron-sized Co60Fe40 and Permalloy disks was investigated using micromagnetic simulations and magnetic force microscopy (MFM) measurements. By comparing both materials, it is possible to elucidate the effect of the planar magnetocrystaline anisotropy in the stability of the magnetic vortex configuration. The results for disks with diameters between 0.5 and 8 􀁐m showed that the magnetic anisotropy favors spins alignment and domains division, reducing vortex stability. Different magnetic configurations was observed for each disk diameter. Additionally, a statistical analysis of the magnetic configuration distribution experimentally observed by MFM was performed and compared with the simulation results.
Access: R
Appears in Collections:Artigo de periódico

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