[Wien] LDA+U, spin up and down
Ali Baghizhadeh
ali.baghizhadeh at ua.pt
Wed Mar 4 15:50:47 CET 2020
Dear WIEN2k users
I am running spin polarized calculation on LuFeO3 structure, with Fe ions having spin up and down in unit cell. I did volume optimization/force minimization, and then I used LDA+U to open the bandgap. It does work fine for spin up when I plot the density of states, but for spin down, it is conductive. I cannot explain this behavior, and I do not know how to look for the root/s of the problem. Please any comment will be highly appreciated.
Case.inorb file: (Fe1 is atom 5 and Fe2 is atom 14)
1 2 0 nmod, natorb, ipr
PRATT 1.0 BROYD/PRATT, mixing
5 1 2 iatom nlorb, lorb
14 1 2 iatom nlorb, lorb
1 nsic 0..AMF, 1..SIC, 2..HFM
0.367 0.073 U J (Ry) Note: you can also use U_eff = U-J and J=0
0.367 0.073 U J
Sincerely
Ali
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