Dear all, as you suggested, i try to follow your tutorial for the Hubbard U coefficients determination, but i have some practical difficulties.
Summarizing, i proceded as follow: step 1)?> i have done a simple SCF with very low coefficients for Hubbard_U1 and Hubbard_U2, enabling the wavefunction separate collection (wf_collect) ; step 2)?> i have performed some SCF, restarting from the charge file stored previously, introducing some fluctuation values in Hubbard_alpha (?), is it correct? the problem is at this point: do i need to rename every scf-file in which i performed a different perturbation? How can i, in the next step, ?recall? the different perturbation that i performed previously? At this point is obvious that i don?t know also how to calculate the response functions and so, obtaining the Hubbard U coefficient. Can someone help me? Thanks a lot, Tommaso, Universit? C? Foscari of Venice