[Wien] band structure in semiconductors

[Sahra Sahraii]

Dear wien2k users
I'm calculating electronic band structure of some narrow band gap semiconductors, according to these calculations the top of the valance band locates a bit above the Fermi level , the top of the valance band crosses the fermi level, what does it mean? why in these compounds that they are semiconductors, the Fermi level is crossed by the valance band.  Best wishesSahraii
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