Fagan, J.
, Hobbie, E.
, Kono, J.
, Searles, T.
, Imanaka, Y.
, Takamasu, T.
and Ajiki, H.
(2010),
Large Magnetic Susceptibility Anisotropy of Metallic Carbon Nanotubes, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.105.017403
(Accessed October 14, 2025)
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Large Magnetic Susceptibility Anisotropy of Metallic Carbon Nanotubes
Published
Author(s)
, , Jun Kono, Thomas Searles, Y Imanaka, T Takamasu, H Ajiki
Abstract
Through magnetic linear dichroism spectroscopy, the magnetic susceptibility anisotropy of metallic single-walled carbon nanotubes has been extracted and found to be 2-4 times greater than values for semiconducting single-walled carbon nanotubes. This large anisotropy is consistent with our calculations and can be understood in terms of large orbital paramagnetism of electrons in metallic nanotubes arising from the Aharonov-Bohm-phase-induced gap opening in a parallel ¯eld. We also compare our values with previous work for semiconducting nanotubes, which con¯rm a break from the prediction that the magnetic susceptibility anisotropy increases linearly with the diameter.Citation
Physical Review Letters
Volume
105
Pub Type
Journals
Download Paper
Keywords
nanotube, SWNT, SWCNT, magnetic field, alignment, dichroism
Citation
Issues
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Created July 2, 2010, Updated November 10, 2018