Spatial distribution of unpaired spins of the unrelaxed bilayer graphene quantum dots models with seven different RSF rotational angles. Unpaired spins were obtained by subtracting the spin down density from the spin up density; results in positive values are shown in light blue, and results in negative values are shown in light yellow. (a)–(g) The 3D views and (h)–(n) the top views of (a)–(g), respectively.