2012年10月
Suppression of Exciton-Electron Scattering in Doped Single-Walled Carbon Nanotubes
PHYSICAL REVIEW LETTERS
- ,
- ,
- 巻
- 109
- 号
- 18
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.109.187403
- 出版者・発行元
- AMER PHYSICAL SOC
We theoretically study the phase relaxation of excitons in doped single-walled carbon nanotubes caused by elastic scattering between an exciton and an electron. Our calculation of the spectral linewidth, that is the inverse of the scattering rate, demonstrates that this dephasing process is unexpectedly suppressed in doped single-walled carbon nanotubes, giving rise to anomalous nonlinear behavior as a function of the electron density. A detailed investigation reveals that the logarithmic correction of the exciton self-energy plays a critical role in the exciton-carrier scattering dynamics.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.109.187403
- ISSN : 0031-9007
- eISSN : 1079-7114
- Web of Science ID : WOS:000310434400034