Intrinsic energy loss mechanisms in a cantilevered carbon nanotube beam oscillator

被引：158

作者：

Jiang, H ^{[1
]}

Yu, MF ^{[1
]}

Liu, B ^{[1
]}

Huang, Y ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech & Ind Engn, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.93.185501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Classical molecular dynamics is applied to study the energy dissipation (the Q factor) of the cantilever-type beam oscillators of single wall and double-walled carbon nanotubes (CNTs). The study finds that the Q factor of the CNT beam oscillator varies with the temperature T following the 1/T-0.36 dependence. For single wall CNT, the Q factor drops from 2 x 10(5) at 0.05 K to 1.5 x 10(3) at 293 K. The study further reveals that the weak interlayer binding strength and the interlayer commensurance significantly increases the energy dissipation in the double-walled CNT oscillator.

引用

页码：185501 / 1

页数：4

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