[Wien] Need your help please

Dear all I need the answer for the following question I am using the Wien2k code to calculate the imaginary part of the complex dielectric function has certain limitations: the local field effects are neglected, phonon contributions to the optical spectra band gap and excitonic effects are not

Re: [Wien] (no subject)

Dear Sikander Azam, there seems to be agreement that DFT calculates the ground state, and that this state is occupied at T=0 K. So there are two cases: 1) If comparison with your experiment works at some finite temperature it stands to reason that the probability of observing the ground