Surface and interface currents in hybrid structures involving topological superconductors

Dr Andreas Schnyder (Max Plank Institute for solid state research)

A key experimental signature of topological superconductors is the existence of topologically protected spin and thermal edge currents. Based on a microscopic model we study the appearance of these edge currents in several candidate materials for topological superconductivity, such as the pnictide superconductor SrPtAs and the non-centrosymmetric superconductor BiPd. We investigate how these edge currents are modified at an interface with a ferromagnetic metal. The spectral and transport properties of topological superconductor-ferromagnet heterostructures are discussed in detail.