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Type: Artigo
Title: Observation of ferromagnetism in PdCo alloy nanoparticles encapsulated in carbon nanotubes
Author: Roa, Daniel Bretas
Barcelos, Ingrid David
Siervo, Abner de
Pirota, Kleber Roberto
Lacerda, Rodrigo Gribel
Magalhães-Paniago, Rogério
Abstract: Carbon nanotubes terminated by PdCo catalyst nanoparticles were grown by plasma-enhanced chemical vapor deposition. Transmission electron microscopy reveals that these nanoparticles have a droplike shape and are completely encapsulated inside multiwalled nanotubes. Magnetization measurements showed the existence of a permanent magnetization with a small shape anisotropy effect. The magnetization of both cobalt and palladium was confirmed by x-ray magnetic circular dichroism. These results show that nanotubes ended by magnetic PdCo nanoparticles can be grown and could be used in magnetic storage media and electrical spin injection.
Subject: Nanotubos de carbono
Cobalto - Propriedades magnéticas
Anisotropia magnética
Dicroismo circular magnético
Country: Estados Unidos
Editor: American Institute of Physics
Citation: Applied Physics Letters. Amer Inst Physics, v. 96, n. 25, 2010.
Rights: fechado
Identifier DOI: 10.1063/1.3454781
Date Issue: 2010
Appears in Collections:IFGW - Artigos e Outros Documentos

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