Direct measurement of strain-induced changes in the band structure of carbon nanotubes.
The effect of uniaxial strain on the optical transition energies of single-walled carbon nanotubes with known chiral indices was measured by Rayleigh scattering spectroscopy. Existing theory accurately predicts the trends in the measured strain-induced shifts, but overestimates their magnitude. Modification of the analysis to account for internal sublattice relaxation results in quantitative agreement with experiment.
Huang
Mingyuan
M
Department of Mechanical Engineering, Columbia University, New York, New York, 10027 USA.
Wu
Yang
Y
Chandra
Bhupesh
B
Yan
Hugen
H
Shan
Yuyao
Y
Heinz
Tony F
TF
Hone
James
J