Bandstructure of graphene

[TARUNATTRI1398]

After doping of graphene i calculate the bandstructure and the bangap opens at dirac point but the valence band  crosses fermi level but donot overlap conduction. How classify this material as semiconductor or semimetal or dengerate semiconductor or metal. i attach that Bandstructure

One thing more I am learning this  software and can anybody tell how get theoritical aspect DFT LCAO and NEGF theory like  some good books or research papers

[abhishek77492652]

For NEGF you can go through the lecture series by Prof. Supriyo Datta (Purdue University).
For a better understanding in the DFT you can refer some books like DENSITY FUNCTIONAL
THEORY by DAVID S. SHOLL.
 Regards,
Abhishek Kumar