Magnetic properties of aligned Fe-filled carbon nanotubes
- 15 May 2003
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 93 (10) , 7894-7896
- https://doi.org/10.1063/1.1557824
Abstract
We report on the magnetic properties of Fe-filled multiwalled carbon nanotubes (MWNTs) grown by chemical vapor deposition (CVD) on Si substrates with ferrocene as precursor. The MWNTs are aligned perpendicularly to the substrate plane. X-ray diffraction analyses indicate the presence of both bcc and fcc iron with a relatively strong texture. Magnetometry measurements show a pronounced magnetic anisotropy with the easy axis perpendicular to the substrate plane and parallel to the axis of the aligned MWNTs, respectively. The low-temperature behavior suggests a negligible coupling between the two iron phases. We accessed the magnetic properties of individual Fe-filled MWNTs by electron holography using a transmission electron microscope (TEM).This publication has 16 references indexed in Scilit:
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