Tunneling conductance of the s – wave and d- wave pairing superconductive graphene – normal graphene junction

Abstract

Within the framework of the Blonder – Tinkham-Klapwijk formalism we calculate and analyze the conductance of the normal graphene – s-wave and independently d-wave pairing superconductive graphene junction. The eigenfunctions, the Andreev and the normal reflection rates are obtained by solving the Dirac – Bogoliubov – de Gennes equations. We consider the options of gapless and gapped graphene for both cases: – s-wave and independently d-wave.