Dear VASP Users,

I have been carrying out GW+BSE calculations on a semi-conducting material. When carrying out the BSE calculation I use the WAVECAR and WAVEDER files from the groundstate calculation and the WFULLxxxx.tmp files from the GW calculation. However, the GW calculations has increased the energy of the top of the valence band such that it is now larger than the fermi level of the groundstate calculation.

When carrying out the BSE calculation the material is being treated, wrongly, as a metal.

Would anyone have a solution to this problem?

Kind regards,

Declan