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arXiv · 1006.4841

ESR evidence for disordered magnetic phase from ultra-small carbon nanotubes embedded in zeolite nanochannels

S. S. Rao·A. Stesmans·J. V. Noyen·P. Jacobs·B. Sels
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Abstract

A multi-frequency electron spin resonance (ESR) study provides evidence for the occurrence of low temperature ferromagnetic/spin-glass behavior in aligned arrays of sub-nanometer single walled carbon nanotubes confined in zeolite nano-channels, owing to sp2-type non-bonding carbon associated localized states with density of ~3 x 1019 /g. Features related to the much anticipated conduction ESR are not detected. In the paramagnetic phase, the ESR linewidth is found to be weakly dependent on microwave frequency.

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S. S. Rao, A. Stesmans, J. V. Noyen, P. Jacobs, B. Sels. 2010-06-24. ESR evidence for disordered magnetic phase from ultra-small carbon nanotubes embedded in zeolite nanochannels. https://doi.org/10.1209/0295-5075/90/57003

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