6533b831fe1ef96bd1298419
RESEARCH PRODUCT
Ion irradiation of carbon nanotubes encapsulating cobalt crystals
Julio A. Rodríguez-manzoLitao SunOssi LehtinenMauricio TerronesTimur NikitinLeonid KhriachtchevFlorian BanhartJuhani KeinonenArkady V. KrasheninnikovArkady V. Krasheninnikovsubject
Materials sciencePhysics::Instrumentation and DetectorsPhysics::Medical PhysicsNanotechnology02 engineering and technologyCarbon nanotube01 natural sciencesIonlaw.inventionCondensed Matter::Materials Sciencesymbols.namesakelaw0103 physical sciencesElectron beam processingIrradiation010306 general physics021001 nanoscience & nanotechnologyCondensed Matter PhysicsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsAmorphous carbonChemical engineeringTransmission electron microscopysymbolsNanorod0210 nano-technologyRaman spectroscopydescription
Abstract The response of multi-walled carbon nanotubes encapsulating Co nanorods to ion irradiation was studied. The irradiation experiments with medium ion energies (40–500 keV) were carried out at high temperatures and combined with transmission electron microscopy and Raman characterization of the irradiated samples. Contrary to electron irradiation and high-energy (100 MeV) ion irradiation, we did not see accumulation of pressure inside irradiated nanotubes. We found that nanotubes with Co nanorods inside were transformed to amorphous carbon rods encapsulating Co clusters with typical diameters of 3–6 nm. As Co is magnetic, such one-dimensional composite systems could be used for various applications such as magnetic data storage or magnetic resonance imaging.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-05-01 | Physica E: Low-dimensional Systems and Nanostructures |