Heating Causes Nonlinear Microwave Absorption Anomaly in Single-Walled Carbon Nanotubes

Bence G. Márkus, Balázs Gyüre-Garami, Olivér Sági, Gábor Csősz, Anita Karsa, Ferenc Márkus, Ferenc Simon

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Microwave impedance measurements indicate a nonlinear absorption anomaly in single-walled carbon nanotubes at low temperatures (below 20 K). We investigate the nature of the anomaly using a time resolved microwave impedance measurement technique. It proves that the anomaly has an extremely slow, a few hundred second long dynamics. This strongly suggests that the anomaly is not caused by an intrinsic electronic effect and that it is rather due to a slow heat exchange between the sample and the environment.

Original languageEnglish
Article number1800258
JournalPhysica Status Solidi (B) Basic Research
Volume255
Issue number12
DOIs
Publication statusPublished - Dec 2018

Keywords

  • heating effects
  • microwave conductivity
  • single-walled carbon nanotubes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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