Dear Mr Nisihara,Below is the DOS and Bandstructure plot for GaN Nanowire (9.5A)estomated bandgap from this two figures are different . Can you please have a look at it ?
Sorry for my late reply.
I think Band and DOS are consistent. It seems that both of them suggest similar the band gap.
But, DOS may underestimate the band gap, because it is smeared by gaussian function.