Interfacial Magnon-Mediated Superconductivity in Twisted Bilayer Graphene

The interfacial coupling between electrons and magnons in separate adjacent layers can mediate an attractive electron-electron interaction and induce superconductivity. We consider magic-angle twisted bilayer graphene sandwiched between two ferromagnetic insulators to optimize this effect. As a result, magnons induce a multicomponent superconducting state characterized by p-wave symmetry. Furthermore, estimates for the critical temperature are significantly higher than for the intrinsic mechanism due to the enhanced density of states at the magic angle. Our results open a new path for exploring magnon-induced superconductivity.