Dear Wien2k community,
I have successfully optimized GaN in the zinc blend phase using LSDA. After that, I got the band structure using LSDA and mBJ (P-semiconductor parameters : A=0.267, B=0.656 and e=1). I noticed that mBJ significantly improves the band gap, but the SO splitting goes down from 12meV (LSDA) to 3 meV (mBJ). The experimental value is about 16 meV. Well, I would like to know if there is some way to keep both quantities well described. All the best, Luis
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