Exchange bias in laterally oxidized Au/Co/Au nanopillars

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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/21576

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Título:	Exchange bias in laterally oxidized Au/Co/Au nanopillars
Autor:	Balcells Argemi, Lluis; Martínez Perea, Benjamín ; Iglesias, O.; García-Martín, José Miguel ; Cebollada, Alfonso ; García-Martín, Antonio ; Armelles Reig, Gaspar ; Sepúlveda, Borja ; Alaverdyan, Yury
Palabras clave:	Antiferromagnetic materials Cobalt Coercive force Colloids Exchange interactions (electron) Ferromagnetic materials
Fecha de publicación:	9-feb-2009
Editor:	American Institute of Physics
Citación:	Applied Physics Letters 94(6): 062502 (2009)
Resumen:	Au/Co/Au nanopillars fabricated by colloidal lithography of continuous trilayers exhibit an enhanced coercive field and the appearance of an exchange bias field with respect to the continuous layers. This is attributed to the lateral oxidation of the Co interlayer that appears upon disk fabrication. The dependence of the exchange bias field on the Co nanodots size and on the oxidation degree is analyzed and its microscopic origin clarified by means of Monte Carlo simulations based on a model of a cylindrical dot with lateral core/shell structure.
Descripción:	3 pages, 4 figures.-- PACS: 75.30.Et; 75.50.Tt; 81.16.Nd; 61.46.Df; 75.60.Ej; 75.50.Ee
Versión del editor:	http://dx.doi.org/10.1063/1.3078411
URI:	http://hdl.handle.net/10261/21576
DOI:	10.1063/1.3078411
ISSN:	0003-6951
Aparece en las colecciones:	(IMN-CNM) Artículos (ICMAB) Artículos

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