Topological Superconductivity in Sn/Si(111) driven by non-local Coulomb interactions

Mehdi Biderang, Mohammad-Hossein Zare, Jesko Sirker

Superconductivity was recently observed in boron-doped ($\sqrt{3}\times \sqrt{3}$)Sn/Si(111). The material can be described by an extended Hubbard model on a triangular lattice. Her…