The phonon dispersion relations of SW-CNTs can be calculated using zone
folding , tight-binding methods[37,38,39,40], density functional theory
and symmetry-adapted models [50,51,52,53,54].
The phonon dispersion relations of SW-CNTs can be understood by zone
folding of the phonon dispersion branches of graphene.
M. Pourfath: Numerical Study of Quantum Transport in Carbon Nanotube-Based Transistors