[Pw_forum] bilayer graphene band structure

[rojib raj]

dear altruists,
while finding band structure for bilayer graphene, I used "ibrav=4"
now can somebody tell me why we use the value of ibrav =4  ???
I think this value indicates 3D structure of graphene which is actually
graphite not graphene.....it would be helpful if somebody could explain
this...

thanks in advance.......
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