First principle calculations of thermodynamic properties of pure graphene sheet and graphene sheets with Si, Ge, Fe, and Co impurities
Kheyri A1, Nourbakhsh Z2, †, 
The (a) 4 × 4 × 1 and (b) 2 × 2 × 1 hexagonal honeycomb lattices of graphene sheets. One atom of carbon in a pure graphene sheet is replaced with Si, Ge, Fe, and Co impurities.
