Fig. 5: Growth and domain formation.
From: Cloning the Dirac cones of bilayer graphene to the zone center by selenium adsorption

a Random adsorption of Se8 molecules on energetically equivalent sites on the BLG surface to form nuclei for growth. b Growth of \(\left( {2\sqrt 3 \times 2\sqrt 3 } \right)R30^\circ\) domains. c Domain boundary formation. This boundary corresponds to one between domains A and C (or between B and D) as defined in Fig. 4.