Bound states of Dirac fermions in monolayer gapped graphene in the presence of local perturbations

Yarmohammadi Mohsen^{1, †,}, Zareyan Malek²

Dependence of the bound electron states on the normalized gapless region radius at fixed short-range potential strengths (a) a = 0, (b) a = 1 (electrons), (c) a = 1 (holes), and (d) on the short-range mass perturbation strength at a fixed Λ = 7.5 in the K valley.