Kohn anomaly in Raman spectroscopy of single wall carbon nanotubes

Ken Ichi Sasaki, Hootan Farhat, Riichiro Saito, Mildred S. Dresselhaus

研究成果: Review article査読

28 被引用数 (Scopus)

抄録

Phonon softening phenomena of the Γ point optical modes including the longitudinal optical mode, transverse optical mode and radial breathing mode in "metallic" single wall carbon nanotubes are reviewed from a theoretical point of view. The effect of the curvature-induced mini-energy gap on the phonon softening which depends on the Fermi energy and chirality of the nanotube is the main subject of this article. We adopt an effective-mass model with a deformation-induced gauge field which provides us with a unified way to discuss the curvature effect and the electronphonon interaction.

本文言語English
ページ(範囲)2005-2015
ページ数11
ジャーナルPhysica E: Low-Dimensional Systems and Nanostructures
42
8
DOI
出版ステータスPublished - 2010 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 凝縮系物理学

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