Chiral angle dependence of resonance window widths in (2n+m) families of single-walled carbon nanotubes

• Main Authors: Hsieh, Ya-Ping (Contributor), Hofmann, Mario (Contributor), Farhat, Hootan (Contributor), Barros, Eduardo B. (Author), Kalbac, Martin (Author), Kong, Jing (Contributor), Liang, Chi-Te (Author), Chen, Yang-Fang (Author), Dresselhaus, Mildred (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science (Contributor), Massachusetts Institute of Technology. Department of Materials Science and Engineering (Contributor), Massachusetts Institute of Technology. Department of Physics (Contributor)
• Format: Article
• Language: English
• Published: American Institute of Physics (AIP), 2014-05-16T19:52:44Z.
• Subjects: Article
• Online Access: Get fulltext

Raman spectra of isolated single-walled carbon nanotubes (SWNTs) were obtained for a wide range of laser excitation energies to study the resonance excitation window of the radial breathing mode feature for members of (2n+m) families. A chiral angle (θ) dependence of the resonance window width (Γ) was observed, which is much stronger than the diameter dependence. The implications of this work on nanotube metrology are discussed.
National Science Foundation (U.S.) (Grant 07-04197)