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Open Access item Magnetic domain structure of nanohole arrays in Ni films

Authors:Jaafar, Miriam
Navas, D.
Asenjo Barahona, Agustina
Vázquez, M.
Hernández-Vélez, M.
García-Martín, José Miguel
Keywords:Nickel, Magnetic thin films, Nanostructured materials, Magnetic domains, Long-range order, Magnetic force microscopy
Issue Date:2-May-2007
Publisher:American Institute of Physics
Citation:Journal Applied Physics 101(9): 09F513 (2007)
Abstract:Nanohole arrays in Ni films have been prepared by a replica/antireplica method based on anodic alumina membranes. The nanohole arrays exhibited long range ordering with hexagonal symmetry, the hole distance was kept constant (105 nm), and the hole diameter and the film thickness were varied between 50 and 70 nm and 55 and 600 nm, respectively. The magnetic domain structures of such samples have been studied by analyzing magnetic force microscopy images at remanent state. Different domain structures have been observed depending on the geometrical characteristics of the films. The experimental results have been interpreted with the help of micromagnetic simulations.
Publisher version (URL):http://dx.doi.org/10.1063/1.2711613
URI:http://hdl.handle.net/10261/12576
ISSN:0021-8979
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