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

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抜粋

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.

元の言語英語
記事番号113112
ジャーナルApplied Physics Letters
104
発行部数11
DOI
出版物ステータス出版済み - 3 17 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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