Description:

The intersection of emergent phenomena, e.g., ferroelectricity and superconductivity, is a fertile landscape for exotic quantum orders. In this presentation, I will talk about engineering these cooperative orders in complex oxides and chalcogenide thin films and heterostructures grown by molecular beam epitaxy (MBE). I will present our recent results on MBE growth of KTaO3 heterostructures and the emergence of long-range polarization and two-dimensional superconductivity in this system. I will show that superconductivity in this materials system in anisotropic and violates Pauli limit. I will also present our recent results on MBE growth and engineered intersections between ferroelectricity and superconductivity in topological crystalline insulator Pb1-xSnxTe.

 Kaveh Ahadi, Assistant Professor, Ohio State University

Host: Venkat Chandrasekhar