Thermally induced nonlinear vibration of single-walled carbon nanotubes

Heeyuen Koh, James J. Cannon, Takuma Shiga, Junichiro Shiomi, Shohei Chiashi, Shigeo Maruyama

研究成果: ジャーナルへの寄稿学術誌査読

11 被引用数 (Scopus)

抄録

The thermally induced nonlinear vibration of single-walled carbon nanotubes (SWNTs) was investigated, focusing on the peak broadening and/or multiple peaks of the frequency spectra. From Poincaré maps of SWNT tip trajectories, we observed two distinguishable patterns of vibration: planar and nonplanar (whirling) motion which appeared repeatedly. The alternation of the pattern is sometimes accompanied by a change of rotational direction. Proposed approximate solutions of nonlinear beam equations can reproduce well the alternation of the patterns for both cantilevered and suspended SWNTs. By using this analytical approach, we have found that multiple peaks of experimentally observed frequency spectra are due to the repeated and sudden alternations of two modes, induced by nonlinear effects.

本文言語英語
論文番号024306
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
92
2
DOI
出版ステータス出版済み - 7月 27 2015
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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