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

Anita Karsa, Dario Quintavalle, László Forró, Ferenc Simon

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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 ∼20K (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.

Original languageEnglish
Pages (from-to)2487-2490
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume249
Issue number12
DOIs
Publication statusPublished - Dec 1 2012

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Keywords

  • Carbon nanotubes
  • Graphene
  • Microwave conductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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