Fig. 3: Nickel adatoms at the graphene edges.
From: Single-atom catalytic growth of crystals using graphene as a case study
A Ni adatom diffusing on a surface in a region delimited by graphene z (right) and k (left) edges with kinks. Two representative trajectories obtained by MD simulations with ReaxFF performed at 710 K for 100 ps are shown. Color palette for Ni trajectories: from green (initial position) to white (final position). The final steps are highlighted by increasing the ball size. B–I Short-lived configurations of Ni adatom at k-edge kinks: B and F High-speed STM images from movie S2 (20) (V = 20 mV; I = 7 nA). C and G Laplace-filtered version of images from (B) and (F) with superimposed ball models. D and H constant-height STM simulated images based on the calculated geometries (E and I). Reproduced with permission from the American Association for the Advancement of Science40.
