van der Waals interaction in nanotube bundles:: Consequences on vibrational modes

被引：221

作者：

Henrard, L ^{[1
]}

Hernández, E

Bernier, P

Rubio, A

机构：

[1] Fac Univ Notre Dame Paix, Phys Solide Lab, B-5000 Namur, Belgium

[2] Univ Montpellier 2, Dynam Phases Condensees Grp, F-34095 Montpellier, France

[3] Univ Sussex, Sch Chem Phys & Environm Sci, Brighton BN1 9QJ, E Sussex, England

[4] Univ Valladolid, Dept Fis Teor, E-47011 Valladolid, Spain

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.60.R8521

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have developed a pair-potential approach for the evaluation of van der Waals interaction between carbon nanotubes in bundles. Starting from a continuum model, we show that the intertube modes range from 5 cm(-1) to 60 cm(-1). Using a nonorthogonal tight-binding approximation for describing the covalent intratube bonding in addition, we confirm a slight chiral dependence of the breathing mode frequency and we found that this breathing mode frequency increases by similar to 10% if the nanotube lies inside a bundle as compared to inside the isolated tube.

引用

页码：R8521 / R8524

页数：4

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