Characteristic quantum transport features of a graphene-based quantum antidot structure which has been considered between two semi-infinite zig-zag graphene leads is investigated theoretically. The RPA-Keldysh method has been employed to capture Colomb interaction between the carriers in the presence of the Rashba interaction. It has been realized that the Colomb interaction results in negative differential conductance (NDC) which significantly depends on the strength of the Rashba coupling.
Hasanirokh et al. (Thu,) studied this question.