70
P. K. Das et al.
Fig. 17 The curves of C 2 versus x under terahertz frequency in ternary material for (a) the band
structure contains 3 energy band constants and (b) the band structure contains 2 energy band
constants
Fig. 18 The curves of C 2 versus x under terahertz frequency in ternary materials for (a) the
band structure contains 3 energy band constants and (b) the band structure contains 2 energy band
constants