Superconductivity in Graphene NbSe₂ heterostructures

We study van der Waals heterostructures formed by graphene and monolayer NbSe₂ . We show that despite the large mismatch between the lattice constant of graphene and NbSe₂ in these structures a large superconducting pairing can be induced into the graphene layer. In addition, we show how such pairing depends, both in nature and structure, on the stacking configuration. Our results are relevant also to heterostructures formed by graphene and other monolayer of transition metal dichalcogenides such NbS₂, TaS₂, and TaSe₂, that have also been shown to be superconducting at low temperature, and suggest a way to probe the nature of the multiband superconducting gap in these systems.