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Título: | Effect of a capping layer on the magnetic properties of island nanostructured Fe(110) |
Autor: | Calleja, J. F.; Contreras, M. C.; Matarranz, R.; Navarro, E.; Huttel, Yves CSIC ORCID ; Cebollada, Alfonso CSIC ORCID; Armelles Reig, Gaspar CSIC ORCID | Palabras clave: | Iron Aluminium Ferromagnetic materials Magnetic anisotropy Nanostructured materials Magnetisation reversal Magnetic susceptibility Magnetic particles Superparamagnetism Interface magnetism |
Fecha de publicación: | 28-abr-2005 | Editor: | American Institute of Physics | Citación: | Journal of Applied Physics 97, 104302 (2005) | Resumen: | We present a study on the magnetic anisotropy and magnetization reversal of Fe(110) islands grown on Al2O3 versus the island size, the island size distribution, and the magnetic interaction between islands. For small islands magnetically connected via a polarizable capping layer, the samples behave as a uniform film with an induced uniaxial in-plane anisotropy. Magnetically isotropic samples are obtained when the islands size is increased. Transverse susceptibility measurements show that the magnetic anisotropy of the particles is macroscopically averaged due to the interisland magnetic interaction. The island size distribution is correlated to the magnetic anisotropy field dispersion. When the capping layer material is Al, a superparamagnetic behavior is found due to the absence of the interisland interaction. | Versión del editor: | http://link.aip.org/link/?JAPIAU/97/104302/1 http://dx.doi.org/10.1063/1.1895465 |
URI: | http://hdl.handle.net/10261/18993 | DOI: | 10.1063/1.1895465 | ISSN: | 0021-8979 |
Aparece en las colecciones: | (IMN-CNM) Artículos |
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Fichero | Descripción | Tamaño | Formato | |
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Calleja, J.F. et al J.Appl.Phys._97_2005.pdf | 77,16 kB | Adobe PDF | Visualizar/Abrir |
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