GGA+U in VASP

Queries about input and output files, running specific calculations, etc.


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xwsha
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GGA+U in VASP

#1 Post by xwsha » Wed Sep 10, 2008 7:50 pm

Hi,

I tried to use GGA+U to examine the influences of U on band structures. I used u and v values according to Solovyev et al. PRB 50, 19861(1994).

LDAU = .TRUE.
LDAUL = 2 -1
LDAUU = 3.0 0
LDAUJ = 0.6 0

Surprising, the density of states getting from the system with and without U look pretty similiar, so is the band gap. This is pretty weired. The calculated total energy is significantly different, however.

I wonder if anybody have the same experience. Thanks for your help.
Last edited by xwsha on Wed Sep 10, 2008 7:50 pm, edited 1 time in total.

support_vasp
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Re: GGA+U in VASP

#2 Post by support_vasp » Wed Sep 11, 2024 1:47 pm

Hi,

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