Raman resonance window of single-wall carbon nanotubes
Raman resonance window of single-wall carbon nanotubes
复制标题
DOI：
10.1103/physrevb.74.165414
复制
发表时间：
2006-10
影响因子：
3.7
通讯作者：
Jin Sung Park;Y. Oyama;R. Saito;W. Izumida;Jie Jiang;K. Sato;C. Fantini;A. Jorio;G. Dresselhaus;M. Dresselhaus
中科院分区：
文献类型：
--
作者：
Jin Sung Park;Y. Oyama;R. Saito;W. Izumida;Jie Jiang;K. Sato;C. Fantini;A. Jorio;G. Dresselhaus;M. Dresselhaus
2006年5月23日收到；2006年7月28日收到修订稿；2006年10月24日发表。单壁碳纳米管的拉曼激发过程的光谱宽度或值通过评估载流子的寿命来计算。将计算结果与实验测得的拉曼激发光谱宽度进行了比较。fi-LE。由电子-声子相互作用估算的数值显示出强烈的手性和直径依赖性，这是获得共振拉曼光谱峰值强度的关键。此外，对于金属碳纳米管，我们希望通过与实验结果的比较，对计算值有额外的贡献。特别是，我们预计金属碳纳米管中的等离子体激发也可能对谱线宽度有贡献。DOI：10.1103/PhysRevB.74.165414PACS号S：78.67.-n，78.30.-j，78.40.-q
Received 23 May 2006; revised manuscript received 28 July 2006; published 24 October 2006The spectral width, or value, of the Raman excitation profile for single-wall carbon nanotubes is calculatedby evaluating the lifetime of the carriers. The calculated results for the values are compared with theexperimental spectral width of the Raman excitation profile. The values evaluated by the electron-phononinteraction show a strong chirality and diameter dependence which is crucial for obtaining the peak intensitiesof the resonance Raman spectra. Moreover, for metallic carbon nanotubes, we expect an additional contributionto the calculated values by comparing them with the experimental results. In particular, we expect that theplasmon excitation in metallic carbon nanotubes may also contribute to the spectral linewidth .DOI: 10.1103/PhysRevB.74.165414 PACS number s : 78.67.-n, 78.30.-j, 78.40.-q