期刊
PHYSICAL REVIEW LETTERS
卷 84, 期 21, 页码 5002-5005出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.5002
关键词
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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.
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