IMX Seminar Series - Coupling Topological Solitons in Hybrid Quantum Architectures

We created hybrid materials in which superconductivity and magnetism interact through their particle-like topological excitations. Magnetic nano-skyrmions inject flux tubes into superconductors, creating a bound pair of topological solitons. This flux is oriented antiparallel to the external magnetic field and hence forms antivortices, which modify the net magnetization of our materials and their flux dynamics. We also detect signatures of circulating spin-polarized supercurrents. The observed coupling of spin and flux topologies demonstrates the viability of such architectures for engineering nontrivial topology in quantum matter. It offers an adaptable recipe to create and study topological superconductivity for quantum operations.