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

被引：11

作者：

Hayashi, Hiroyuki ^{[1
]}

Takahashi, Koji ^{[1
,2
,3
]}

Ikuta, Tatsuya ^{[1
,2
]}

Nishiyama, Takashi ^{[1
,2
]}

Takata, Yasuyuki ^{[2
,3
]}

Zhang, Xing ^{[3
,4
]}

机构：

[1] Kyushu Univ, Dept Aeronaut & Astronaut, Fukuoka 8190395, Japan

[2] Kyushu Univ, JST, CREST, Fukuoka 8190395, Japan

[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan

[4] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 11期

关键词：

THERMAL-CONDUCTIVITY; SILICON NANOWIRES; ION IRRADIATION; CONDUCTANCE;

D O I：

10.1063/1.4869470

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 mu m long MWNT, eventually yielding a 0.3 mu m 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. (C) 2014 AIP Publishing LLC.

引用

页数：5

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