TMD calculation of epw3 in different chemical potential

[Aa410733031]

Hello Developer,

I tried adjusting ef0 and efcb in IBTEvel_sup.fmt, and after recalculating the electron conductivity, I observed that within the band gap, the conductivity increases with temperature, while outside the band gap, it is proportional to temperature raised to the power of -1.5.

May I ask if this method is valid?