Radial-breathing-like phonon modes of double-walled carbon nanotubes

被引:8
|
作者
Wu, G
Zhou, J
Dong, JM [1 ]
机构
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Grp Computat Condensed Matter Phys, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
关键词
D O I
10.1103/PhysRevB.72.115418
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The radial-breathing-like phonon modes (RBLMs) of the double-walled carbon nanotubes are studied in a simple analytical model, in which the interaction force constants (FCs) can be obtained analytically from the continuous model. The RBLMs frequencies are obtained by solving the dynamical matrix, and their relationship with the tube radii can be obtained analytically, offering a powerful experimental tool for determining precisely the radii of the multiwalled carbon nanotubes.
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页数:5
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