Phonon modes in single-wall nanotubes with a small diameter

被引：20

作者：

Maeda, T ^{[1
]}

Horie, C ^{[1
]}

机构：

[1] Ishinomaki Senshu Univ, Dept Basic Sci, Ishinomaki, Miyagi 9868580, Japan

来源：

PHYSICA B | 1999年 / 263卷

关键词：

carbon nanotubes; phonon dynamics; force constant model;

D O I：

10.1016/S0921-4526(98)01415-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Phonon modes in single-walled nanotubes (SWNTs) of carbon are reexamined within the framework of a force constant model. In order to explore the effect of curvature of tubules with a small diameter, the dynamical matrices are formulated in terms of cylindrical coordinates. The curvature effect of tubules is discussed by comparing with the results obtained by the zone folding model. The diameter dependent properties of phonon modes are shown to be useful for analyzing the size distribution of SWNT in the synthesized samples. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：479 / 481

页数：3