Artificial Design of Quantum Materials by Complex Oxide Heterostructures

Artificial heterostructures and superlattices provide huge playground for the design of new topological materials displaying exotic or unconventional quantum transport. Perovskite-related 3d, 4d, and 5d transition metal oxides with their plethora of functionalities such as for example magnetisms, ferroelectricity, superconductivity, or even multiferroic ordering due to strong electron correlation or spin-orbit interaction are ideal candidates for such a route of material design because of their rather simple crystalline structure which perfectly serves as “Lego”-brick-like building blocks for new heterostructures. In addition, current state-of-the art thin film deposition techniques allow the preparation of such heterostructures with a precision of the layer-thickness on the atomic-scale. In this talk, I will report on our latest results on 3d/5d transition-metal oxide heterostructures.