[DFTB-Plus-User] DOS and zero energy

[Nénon Sébastien]

Dear DFTB users,

I did comparisons between DOS for slab with and without adsorbates. I know that in some other codes, there is a need to shift DOS obtained in order to obtain the same zero energy between different calculations.
Is it the same with DFTB+? How is defined the zero energy, and how to find the eventual shift value?

Thanks a lot

Regards

Sébastien Nénon