For the first time the anomaly temperature dependence of the anisotropy field HA in carbon single-walled nanotubes (SWNTs) with magnetic nanoclusters was observed. It is shown that the reason of this phenomenon can be caused by a competition between dipolar interaction and anisotropy. It is found that the assembly of Ni nanoparticles shows the crossover to a collective magnetic ordering both initial and diluted SWNTs at the temperatures smaller than about 50 K.
Konchitis, A., Motsnyi, F., TERRANOVA PERSICHELLI, M.l. (2005). Towards spintronics: superparamagnetism of nanoparticles in carbon nanotubes. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? CAOL-IEEE, Yalta (Ukraine) [10.1109/CAOL.2005.1553914].
Towards spintronics: superparamagnetism of nanoparticles in carbon nanotubes
TERRANOVA PERSICHELLI, MARIA LETIZIA
2005-01-01
Abstract
For the first time the anomaly temperature dependence of the anisotropy field HA in carbon single-walled nanotubes (SWNTs) with magnetic nanoclusters was observed. It is shown that the reason of this phenomenon can be caused by a competition between dipolar interaction and anisotropy. It is found that the assembly of Ni nanoparticles shows the crossover to a collective magnetic ordering both initial and diluted SWNTs at the temperatures smaller than about 50 K.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
