Towards spintronics: superparamagnetism of nanoparticles in carbon nanotubes

For the first time the anomaly temperature dependence of the anisotropy field H/sub A/ 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 fo...

Full description

Saved in:
Bibliographic Details
Main Authors: Konchits, A.A., Motsnyi, F.V., Terranova, M.-L.
Format: Conference Proceeding
Language:English
Subjects:
Absorption
Carbon nanotubes
Magnetic anisotropy
Magnetic resonance
Magnetic separation
Magnetoelectronics
Material storage
Nanoparticles
Perpendicular magnetic anisotropy
Temperature
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For the first time the anomaly temperature dependence of the anisotropy field H/sub A/ 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.
ISSN:2160-1518
2160-1534
DOI:10.1109/CAOL.2005.1553914