Abstract
Resonant Raman scattering (RRS) measurements made with a tunable laser
provide a highly reliable technique to study the shape;of the joint
density of electronic states (JDOS) of isolated single-wall carbon
nanotubes (SWNTs). RRS can be used to determine the energy value for the
one-dimensional (1D) van Hove singularities of a SWNT with a precision
better than 5 meV, thereby providing important information that could be
used for subsequent measurements on this same SWNT. With RRS, the
measured width of the JDOS is on the order of similar to0.1-1.0 meV,
further demonstrating that SWNTs really provide a remarkably good model
for 1D mesoscopic systems.
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