Figure 3
From: Proximity-induced magnetism in transition-metal substituted graphene
(a) Calculated exchange energy (change in total energy) for vanadium (black stars), chromium (blue squares) and manganese (red circles) substituted graphene. (b) The local density of states for the connector carbons (positive - spin up channel and negative - spin down channel), as well as that of pure graphene (dashed blue). Since this is for the five carbon case, there are three spin up and three spin down curves. This is because there are two pairs of carbons atoms that are spatially symmetry and therefore equivalent.
