Published in
American Institute of Physics, The Journal of Chemical Physics, 12(125), p. 121103
DOI: 10.1063/1.2354081
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Second-order overtone and combination modes in the LOLA region of acid treated double-walled carbon nanotubes
Journal article published in 2006 by
A. V. Ellis 
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Abstract
Moderate acid treatment of double-walled carbon nanotubes (DWCNTs) has given rise to two new experimentally observed second-order double resonant Raman scattering frequencies centered at 1901 cm(-1) and 1942 cm(-1), in the highly dispersive LOLA region. These LOLA overtones and combination modes have been predicted by double resonance theory for two phonons associated with the K- and Gamma-points, respectively.