We study the intervalley scattering induced by the Coulomb repulsion as a purely electronic
mechanism for the origin of superconductivity in a few layers of graphene. The pairing is …

We explore unconventional superconductivity of repulsive spinless fermions on square and
honeycomb lattices with staggered sublattice potentials. The two lattices can exhibit …

What limits the value of the superconducting transition temperature (T c) is a question of
great fundamental and practical importance. Various heuristic upper bounds on T c have …

We analyze in detail the superconductivity that arises in an extended Hubbard model
describing a multiband system with repulsive interactions. We show that virtual interband …