Figure3

Figure 3. Schematic representation of a 2D 6 $$ \times $$ 6 square-shaped lattice: filled blue circles represent bulk sites ($$ \mathrm{N_b} $$); filled green and red circles represent edge ($$ \mathrm{N_e} $$) and corner ($$ \mathrm{N_c} $$) sites, respectively, interacting with their immediate environment (matrix).