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Camilli, L., Scarselli, M., Del Gobbo, S., Castrucci, P., Lamastra, F. R., Nanni, F., Gautron, E., Lefrant, S., D'Orazio, F., Lucari, F. & De Crescenzi, M. (2012) High coercivity of iron-filled carbon nanotubes synthesized on austenitic stainless steel. Carbon, 50 718–721. 
Added by: Laurent Cournède (2016-03-10 21:28:40)
Type de référence: Article
DOI: 10.1016/j.carbon.2011.09.034
Numéro d'identification (ISBN etc.): 0008-6223
Clé BibTeX: Camilli2012a
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Catégories: PMN
Mots-clés: magnetic-properties, Multilayers
Créateurs: Camilli, Castrucci, D'Orazio, De Crescenzi, Del Gobbo, Gautron, Lamastra, Lefrant, Lucari, Nanni, Scarselli
Collection: Carbon
Consultations : 10/478
Indice de consultation : 1%
Indice de popularité : 0.25%
Résumé     
Multiwalled carbon nanotubes synthesized directly on austenitic stainless steel result in being filled with pure iron nanoparticles. X-ray diffraction shows that the nanoparticles are either in the gamma- or alpha-phase, although iron in the original alloy is in gamma-phase because of the presence of nickel. This phase transformation is due to the selective extraction of iron, performed by carbon nanotubes during their growth. A high coercivity of iron-filled carbon nanotubes is measured although the starting steel is paramagnetic. The presence of the cc-phase, the magnetic anisotropy and the single domain character of the Fe nanoparticles explain their magnetic behavior. (C) 2011 Elsevier Ltd. All rights reserved.
Added by: Laurent Cournède  
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