Electron-phonon interaction in single-wall carbon nanotubes: A time-domain study

被引：183

作者：

Hertel, T ^{[1
]}

Moos, G ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.84.5002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the electron-phonon (e-ph) interaction in single-wall carbon nanotube samples at room temperature using femtosecond time-resolved photoemission. By probing electrons from the vicinity of the Fermi level we are able to study the e-ph interaction in the metallic nanotube species only. The observed electron dynamics can be used to calculate e-ph scattering matrix elements for twt, likely scattering scenarios: forward scattering from twistons and backscattering by longitudinal acoustic phonons. The corresponding matrix elements reveal an intrinsically weak e-ph interaction approximately 50% smaller than predicted by tight-binding calculations.

引用

页码：5002 / 5005

页数：4

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