Valence excitations in individual single-wall carbon nanotubes

被引：11
|
作者：
Stöckli, T
Bonard, JM
Châtelain, A
Wang, ZL
Stadelmann, P
机构：
[1] Ecole Polytech Fed Lausanne, Dept Phys, Inst Phys Expt, CH-1015 Lausanne, Switzerland
[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[3] Ecole Polytech Fed Lausanne, Ctr Interdepartemental Microscopie Electron, CH-1015 Lausanne, Switzerland
来源：
APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 16期
关键词：
D O I：
10.1063/1.1469685
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on measurements of the plasmon losses of individual single-wall carbon nanotubes by electron energy-loss spectroscopy in a high-resolution transmission electron microscope. The experimental data are compared to simulated excitation probabilities calculated using the hydrodynamic theory of the interaction between a probe electron and a two-dimensional quasifree electron gas confined on a cylindrical shell. Depending on the nanotube geometry, the first- or the second-order oscillation mode dominates the loss spectrum. The resonance energy of the dominant resonance mode is found to depend on the radius of the nanotube. (C) 2002 American Institute of Physics.
引用
收藏
页码：2982 / 2984
页数：3
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