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

  title={Heating Causes Nonlinear Microwave Absorption Anomaly in Single‐Walled Carbon Nanotubes},
  author={Bence G{\'a}bor M{\'a}rkus and Bal{\'a}zs Gy{\"u}re‐Garami and Oliv{\'e}r S{\'a}gi and G{\'a}bor Csősz and Anita Karsa and Ferenc M{\'a}rkus and Ferenc Simon},
  journal={physica status solidi (b)},
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… 
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