Exchange bias in laterally oxidized Au/Co/Au nanopillars

Autor:	Balcells, Ll., Martinez, B., Iglesias, O., Garcia-Martin, J. M., Cebollada, A., Garcia-Martin, A., Armelles, G., Sepulveda, B., Alaverdyan, Y.
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3078411
Popis:	Au/Co/Au nanopillars fabricated by colloidal lithography of continuous trilayers exhibit and 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 disc 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. Comment: 8 pages, 4 figures. Published in Appl. Phys. Lett
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0902.1687 Zobrazit plný text záznamu View this record from Arxiv