Re: [Wien] Hartree-Fock and the Hubbard Model

2016-10-24 Thread Alessandro Fortunelli
no it's Coulomb repulsion (diagonal) Al delamora ha scritto: Dear WIEN2k community, From what I understand the Hubbard Model is to calculate the electronic repulsion inside the orbitals, specially in the 3d and 4f. Is it an approximation for the Hartree Fock exchange? If this is the c

[Wien] regarding hanging of job and mBJ

2016-10-24 Thread Dr. K. C. Bhamu
Dear Wien2k users, A. Sometime my jobs are hanged without completing a scf cycle after couple of cycle. So, I do two things: 1. clean_lapw and re-run the scf cycle and 2. without do a clean_lapw I simply re-run the scf cycle. In both cases I get conversed scf. Is there any problem with such a cal

[Wien] Hartree-Fock and the Hubbard Model

2016-10-24 Thread delamora
Dear WIEN2k community, >From what I understand the Hubbard Model is to calculate the electronic >repulsion inside the orbitals, specially in the 3d and 4f. Is it an approximation for the Hartree Fock exchange? If this is the case then it can be better calculated exact-exchange functionals (1,