Hello
I calculated the band gap of CaMnO3 by following computational details of FP Zhang et al.,
http://www.sciencedirect.com/science/article/pii/S0925838810023297
Which the calculation use same software. I have results Eg = 0.895 eV, but Ref. Eg = 0.7 eV Why not correspond ?
http://www.sciencedirect.com/science/article/pii/S0925838810023297