Krstic, V., Ewels, C. P., Wagberg, T., Ferreira, M. S., Janssens, A. M., Stephan, O. & Glerup, M. (2010) Indirect Magnetic Coupling in Light-Element-Doped Single-Walled Carbon Nanotubes. ACS Nano, 4 5081–5086.
Added by: Laurent Cournède (2016-03-10 21:37:31) |
Type de référence: Article DOI: 10.1021/nn1009038 Numéro d'identification (ISBN etc.): 1936-0851 Clé BibTeX: Krstic2010 Voir tous les détails bibliographiques |
Catégories: PMN Mots-clés: arc-discharge, behavior, dft, doped nanocarbon, electronic-structure, ferromagnetism, graphite, Magnetism, NMR, point-defects, spintronics, transport Créateurs: Ewels, Ferreira, Glerup, Janssens, Krstic, Stephan, Wagberg Collection: ACS Nano |
Consultations : 1/566
Indice de consultation : 4% Indice de popularité : 1% |
Résumé |
Single-walled carbon nanotubes substitutionally doped with the light-element phosphorus are synthesized and are investigated by electrical and nuclear magnetic resonance measurements. Decreased spin lattice relaxation times compared to undoped tubes point toward enhanced spin-sensitive scattering. Temperature dependence of the zero-bias conductance shows step-like features, a signature of scattering from a very low density (few sites per nanotube) of localized spin moments at oxidized phosphorus sites, consistent with density functional calculations. This supports recent predictions that localized magnetic moments must be indirectly magnetically coupled through the nanotube conduction electrons.
Added by: Laurent Cournède |