Breathinglike phonon modes of multiwalled carbon nanotubes

被引：101
作者：
Popov, VN
Henrard, L
机构：
[1] Univ Antwerp, RUCA, Dept Phys, B-2020 Antwerp, Belgium
[2] Fac Univ Notre Dame Paix, Phys Solide Lab, B-5000 Namur, Belgium
[3] Univ Sofia, Fac Phys, BG-1164 Sofia, Bulgaria
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 23期
关键词：
D O I：
10.1103/PhysRevB.65.235415
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The breathinglike phonon modes of multiwalled carbon nanotubes are studied within a valence force field model for nanotubes with two and three layers of armchair type and within a continuum model for nanotubes with a large number of layers. A bond-polarizability model is used to calculate the nonresonant Raman intensity of the breathinglike modes. It is obtained that among all breathinglike modes of a given multiwalled tube, the in-phase one has a maximal intensity. The predicted intensity of the breathinglike modes is compared to available low-frequency experimental Raman data. Special attention is given to the comparison with Raman data on double-walled carbon nanotubes.
引用
收藏
页码：2354151 / 2354156
页数：6
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