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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.

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