On the low temperature microwave absorption anomaly in single-wall carbon nanotubes

The low temperature microwave absorption anomaly reported by Corzilius et al. [Phys. Rev. B 75, 235416 (2007)] in single-wall carbon nanotubes (SWCNTs) is revisited. It was originally reported that the microwave absorption of CVD grown SWCNTs shows an unexpected increase below similar to 20?K (using flow cryostats) which depends on the microwave power. The original observation was made using the microwave cavity perturbation method while sweeping the microwave frequency. We reproduced this effect on arc-discharge based SWCNTs, using static cryogenic conditions with cooled microwave cavities, and employing a stable frequency source locked to the cavity resonance. Our observation shows that the microwave absorption anomaly is robust against the tube type and the experimental conditions.


Published in:
Physica Status Solidi B-Basic Solid State Physics, 249, 12, 2487-2490
Year:
2012
Publisher:
Weinheim, Wiley-V C H Verlag Gmbh
ISSN:
0370-1972
Keywords:
Laboratories:




 Record created 2013-03-28, last modified 2018-03-18


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