標題: Temperature-dependent carrier dynamics in metallic carbon nanotubes
作者: Chiu, CW
Chiu, YH
Shyu, FL
Chang, CP
Chuu, DS
Lin, MF
物理研究所
Institute of Physics
關鍵字: carbon nanotubes;carrier dynamics
公開日期: 31-十月-2005
摘要: The low energy states in metallic armchair carbon nanotubes can decay by the electron-electron Coulomb interactions with the intraband and the interband excitations. The inelastic scattering rate is very sensitive to the changes in the electronic distribution and the state energy (or the wavevector). The temperature dependence is linear for the Fermi-momentum state. Such dependence is hardly affected by the nanotube radius and the Fermi energy. The electron-electron interactions are more efficient in electronic deexcitations compared with the electron-phonon interactions. The calculated results are roughly consistent with the experimental measurements from the time-resolved photoemission spectroscopy. (c) 2005 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.physleta.2005.07.064
http://hdl.handle.net/11536/13152
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2005.07.064
期刊: PHYSICS LETTERS A
Volume: 346
Issue: 5-6
起始頁: 347
結束頁: 354
顯示於類別:期刊論文


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