Phonon structure and dynamics of boron nitride single wall nanotube

被引：6

作者：

Saxena, P ^{[1
]}

Sanyal, SP

机构：

[1] Barkatullah Univ, Dept Phys, Bhopal 462026, India

[2] Barkatullah Univ, Dept Elect, Bhopal 462026, India

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 24卷 / 3-4期

关键词：

phonons; monolayers; nanotubes;

D O I：

10.1016/j.physe.2004.04.037

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report a detailed study of the phonon properties of hexagonal boron nitride (BN) monolayers as well as nanotubes by using De Launay type of angular force model. The force constants used for calculation of phonon dispersion relations of the nanotube are derived from those for the monolayers of hexagonal by employing force constant method. These force constants have been modified to include the effect of curvature of the tubule. The results are then used to derive the phonon dispersion relations for (10,10) BN nanotubes using 'zone-folding' method. Calculated phonon modes are in good agreement with the experimental values obtained so far, for (10,10) armchair BN nanotubes. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：244 / 248

页数：5

共 16 条

[1] Comparative theoretical study of single-wall carbon and boron-nitride nanotubes [J].