Dear all,
I have?a problem when I calculate?band structure of graphene. The band
structure
of graphene calculated by unit of 2 atoms and 8 atoms is different.?the gap at
gama point as well as M point?are totally different.
In general case, unit of?2 atoms and?unit of 8 atoms both create graphene
strucutre. I can not unserstand why?they are different? Is my understanding is
wrong?
I know this is the general question but I hope I can receive?helpful
instructions.
I aprreciate all?ypur helps.?
?
Sincerely,-----------------------------------------------
Loc Duong Dinh
Ms-Ph.D Student
Sungkyunkwan Advanced Institute of Nanotechnology,
Sungkyunkwan University,
Suwon, 440-746, Korea
Email: mambom1902 at yahoo.com, ddloc at skku.edu