Teemu Ojanen (27.02, 11:45)
Affiliation: Tampere University of Technology, Finland Title: Designer topological phases in engineered atomic chains and lattices Abstract:In my talk I explore possibilities for custom-made topological states in artificial systems. Anticipating the next phase in the search for Majoranas, I consider different scenarios for engineering tuneable 2d chiral superconductors with impurity lattices and magnetic superstructures. These systems can realize remarkably complex topological phase diagrams with dozens of different phases and high Chern numbers. I also review some recent experimental developments in fabricating atomically perfect 1d topological insulators and domain wall states. I conclude by a brief introduction to a rising field of amorphous topological matter and its perspectives for designer topology.