Magnetism of metal-filled carbon nanotubes
1. Introduction
Carbon nanotubes (CNTs) filled with ferromagnetic materials constitute stable nanomagnets with no need for supporting structures like substrates. Filled CNTs maintain constant properties without mechanical or chemical degradation. This makes them excellent components for magneto-mechanical sensors.

FIG. 1. (a) SEM micrograph of iron-filled carbon nanotubes (FeCNTs) on a catalyst-coated silicon substrate as grown with CVD. (b) TEM image of a section of a long iron nanowire with constant diameter contained in a carbon nanotube. Inset: High resolution selected area electron diffraction measurement of the alpha-iron filling.
2. Magnetic properties of filled carbon nanotubes

3. Iron-filled carbon nanotubes as magnetic force microscopy (MFM) probes

4. Publications
5. Ongoing work
Contact:
Dr. Thomas Mühl
Department 'Chemical Vapor Deposition'
Institute for Solid State Research (IFF)
IFW Dresden
D-01171 Dresden, Germany
Phone: +49-351-4659-496
Fax: +49-351-4659-9496
Email: t.muehl(et)ifw-dresden.de
See also:
Magnetic properties of filled carbon nanotubes
Iron-filled carbon nanotubes as magnetic force microscopy (MFM) probes