Exact study of lattice dynamics of single-walled carbon nanotubes

被引：65

作者：

Cao, JX ^{[1
]}

Yan, XH

Xiao, Y

Tang, Y

Ding, JW

机构：

[1] Xiangtan Univ, Fac Mat & Photoelect Phys, Xiangtan 411105, Peoples R China

[2] Xiangtan Univ, Inst Mech & Mat Engn, Xiangtan 411105, Peoples R China

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.67.045413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on the model of lattice dynamics with force-constant matrix, we have calculated phonon spectrum and then specific heats of single-walled carbon nanotubes. The results show that with a more complicated phonon spectrum, a single-walled carbon nanotube has analogous good thermal conductivity to the two-dimensional graphite. However, the ratio of thermal conductivity to phonon relaxation time is inversely proportional to the diameter of either zigzag or armchair carbon nanotubes.

引用

页数：6

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