Premium
On the low temperature microwave absorption anomaly in single‐wall carbon nanotubes
Author(s) -
Karsa Anita,
Quintavalle Dario,
Forró László,
Simon Ferenc
Publication year - 2012
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201200446
Subject(s) - microwave , materials science , carbon nanotube , microwave cavity , absorption (acoustics) , anomaly (physics) , nanotechnology , condensed matter physics , composite material , physics , quantum mechanics
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 ∼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.