Seminarium Fizyki Materii Skondensowanej

We investigate the bulk topological proximity effect in multilayer lattice systems by which one can introduce topological properties into a system composed of multiple trivial layers by coupling them to a single nontrivial layer, here described by the Haldane model. This phenomenon depends not only on the number of layers but also on their arrangement, which can lead to the emergence of dark states. The response of a trivial system to the proximity of a topological insulator appears to be nonlocal and of opposite chirality, in contrast to the proximity effect observed in context of superconductivity. The bulk topological proximity effect bears potential for future applications, e.g., in state engineering.