Resonant raman intensity of the radial breathing mode of single-walled carbon nanotubes within a nonorthogonal tight-binding model

被引:62
作者
Popov, VN [1 ]
Henrard, L [1 ]
Lambin, P [1 ]
机构
[1] Fac Univ Notre Dame Paix, Lab Phys Solide, B-5000 Namur, Belgium
关键词
D O I
10.1021/nl048895r
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The resonant Raman intensity of the radial breathing mode is calculated for 50 narrow semiconducting single-walled carbon nanotubes within a symmetry-adapted nonorthogonal tight-binding model. The matrix elements of the momentum and the deformation potential in the quantum-mechanical formula for the intensity are calculated explicitly. The results for the resonance Raman profiles can be used directly in the determination of the diameter distribution of the nanotubes in a sample. Three Raman spectra are simulated and compared to existing experimental data.
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页码:1795 / 1799
页数:5
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