The band structure plotted on the left graph is simply the 2D energy dispersion function of the graphene, but for specific k_y values that depend on the width of the system. The discretized bands of the system are different k_y values.
My question is, what are these values``?
This does not make sense to me.
Using that equation I can reproduce the left plot if I plot kx for some values of ky (with the exception of the lowest energy mode; where does this come from?).
Hello,
https://www.researchgate.net/figure/Top-Graphene-nanoribbons-with-zigzag-left-and-armchair-right-edges-with-disordered_fig1_258105786
With what kx/ky values are these band structures plotted?
The energy dispersion of graphene is given by this
, yet I am confused to what kx/ky value...