Figure 3

(a) Energy dispersion along the x-direction in k space. (b) For different values of \(\alpha_{R} \;{\text{and}}\;\beta_{D}\). (Plotted using octave − 6.3.0).

(a) Energy dispersion along the x-direction in k space. (b) For different values of \(\alpha_{R} \;{\text{and}}\;\beta_{D}\). (Plotted using octave − 6.3.0).