Title:Oxide Heterostructures by Design at Atomic Scale

Speaker: Jiandi Zhang , the Institute of Physics, Chinese Academy of Sciences

Time:2025-02-20  16：00

Venue: Room W101,  Physics Building

Abstract:Due to the nature of synergetic and delicate couplings of different degrees of freedom, it is anticipated that the quantum states in transition metal oxides would be revolutionized by reducing dimensionality and breaking symmetry through heterostructure architecture. While understanding the emergent physics requires science-drive design. In this talk, I will present some recent results on oxide heterostructures toward two-dimensional limit, including the superstructures of ruthenates with several interesting properties, such as anomalous Hall effect and interface magnetic coupling. I will emphasize that constructing well defined interfaces with atomic-level precision is crucial to understand the intrinsic electronic and magnetic properties of oxide heterostructures. By using SrRuO3/SrTiO3 interface as an example, I will discuss the important role played by interface structure in the electronic and magnetic properties of the heterostructure.

Bio: Jiandi Zhang, distinguished professor at the State Key Laboratory for Surface Physics, the Institute of Physics, Chinese Academy of Sciences. He received his M.S. degree from Chinese Academy of Sciences in 1986, and Ph.D. degree from Syracuse University in 1994. He has been in University of Nebraska, University of Tennessee, and Oak Ridge National Laboratory as a postdoc as well as stuff scientist between 1995 and 1998. From 1998 to 2008, he has worked in Florida International University as an assistant and associated professor. In the end of 2008, He moved to Louisiana State University as a tenured full professor in 2008. In 2021, he joined the Institute of Physics, Chinese Academy of Sciences. He has received US NSF Career Award and is a fellow of American Physics Society.