Figure 4
From: Triplet p-wave pairing correlation in low-doped zigzag graphene nanoribbons

(a) The largest eigenvalue χ(qx) of the susceptibility matrix
as a function of qx for three different dopings, i.e., μ = −0.195t (δ = 3.6%), μ = −0.2t (δ = 3.0%) and μ = −0.205t (δ = 0.8%) for the 6-chain system near half-filling. (b) Sketch of the pattern of the dominating spin fluctuations for μ = −0.2t, as determined by the eigenvector of
corresponding to its largest eigenvalue.