Materials Chemistry/Physics Seminar: Professor Leslie Schoop, Princeton University (Hosts: Hema Karunadasa & Zhi-Xun Shen)
**This seminar is available for virtual attendance - in collaboration with Physics Department.**
About the Seminar
"The Chemistry of Quantum Materials"
As chemists, we are familiar with guidelines and heuristics that help us to predict how chemical reactions will proceed. My group is interested to expand these heuristics to understand if we can predict topological materials, which is a class of quantum matter. In this talk, I will show that delocalized chemical bonds in certain structural networks allow us to define chemical descriptors that predict topological material. Using these descriptors, we found a layered, antiferromagnetic van der Waals material with very high mobility. This is the first time that these properties are combined in one material, which is promising for applications in novel types of data storage or computing devices. We further implemented our heuristics to discover novel complex topological phases, including magnetic ones, and phases that are in competition with complex structural distortions. I will show how structural distortions can have a positive effect on topological band structures.
I will also briefly discuss the concept of chemical exfoliation for the synthesis of novel 2D quantum materials. With this method, we can exfoliate materials for which the scotch tape method fails. I will show how we were able to synthesize a new chromium chalcogenide this way, and discuss advantages and limitations of soft-chemical methods.
About the Speaker
Dr. Schoop received her Diploma in Chemistry from Johannes Gutenberg University (2010) and PhD in Chemistry from Princeton University (2015). She then went on to work as a Minerva fast-track fellow under Professor Bettina Lotsch at the Max Planck Institute for Solid State Research (2015-2017). Dr. Schoop joined the Princeton University Department of Chemistry Faculty in 2017. In 2019 she won the Beckman Young Investigator award and became a Moore foundation EPiQS Materials Synthesis Investigator. In 2020 she was awareded the Packard fellowship for science and engineering and in 2021 the Sloan fellowship in Chemistry and the DOD Office of Naval Research Young Investigator award. The Schoop Lab is working at the interface of chemistry and physics, using chemical principles to find new materials with exotic physical properties.