Direct evaluation of ballistic phonon transport in a multi-walled carbon nanotube

Hiroyuki Hayashi, Koji Takahashi, Tatsuya Ikuta, Takashi Nishiyama, Yasuyuki Takata, Xing Zhang

研究成果: Contribution to journalArticle査読

10 被引用数 (Scopus)

抄録

Phonon confinement and in situ thermal conductance measurements in an individual multi-walled carbon nanotube (MWNT) are reported. Focused ion beam (FIB) irradiation was used to successively shorten a 4.8 μm long MWNT, eventually yielding a 0.3 μm long MWNT. After the first FIB irradiation, a 41% reduction in conductance was achieved, compared with that of the pristine MWNT. This was because the contributions from phonons with long free paths were excluded by scattering at FIB-induced defects. Phonon transport in linked multiple-length nanotubes was also investigated.

本文言語英語
論文番号113112
ジャーナルApplied Physics Letters
104
11
DOI
出版ステータス出版済み - 3 17 2014

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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