[Wien] LDA+U for La2O3
SIC CAS
dft_flapw at yahoo.com
Thu Aug 19 22:38:33 CEST 2004
Dear Wien2k users,
I am testing LDA+U for La2O3 system. Besides band
structure, I also need the correction to total energy
with the U added. I add La 5d orbital with U/J =
6/0.8. The *.inorb and *.indm files are:
( 3 La atom types)
---- *.inorb ****
1 3 0 nmod, natorb, ipr
PRATT 1.0 BROYD/PRATT, mixing
1 1 2 iatom nlorb, lorb
2 1 2 iatom nlorb, lorb
3 1 2 iatom nlorb, lorb
0 nsic 0..AFM, 1..SIC,
2. .HFM
0.55147 0.05882 U, J (Ryd)
0.55147 0.05882
0.55147 0.05882
-------------------------
---- *.indm -----------
-9. Emin cutoff energy
3 number of atoms for which de
1 1 2 index of 1st atom, number of L's, L1
2 1 2 dtto for 2nd atom, repeat NATOM times
3 1 2 dtto for 2nd atom, repeat NATOM times
0 0 r-index, (l,s)in
-------------------
Could anyone help me check if those files are right?
I used runsp_lapw -orb
to start calculation. It seems that self-consistent
procedure is OK. Stranger thing is that the total
energy almost doesn't change in comparison with the
GGA calculation ( very little, ~ 1 mRyd). I am
wondering if I did something wrong.
I appreciate whatever suggestion you may give me.
Thanks for help.
yours -- WQ
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