Resonant Raman spectroscopy of armchair carbon nanotubes: Absence of broad G− feature

E. H. Hároz,1,2 J. G. Duque,3,4 W. D. Rice,1,2,5 C. G. Densmore,3 J. Kono,1,2,5,* and S. K. Doorn4,† 1Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA 2The Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, USA 3Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA 4Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA 5Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA (Received 22 July 2011; published 9 September 2011)