Xi Wang

Xi Wang

Assistant Professor of Physics
PhD, Florida State University
BS, University of Science and Technology of China
research interests:
  • Condensed Matter Physics
  • Quantum Materials
  • Strong Light-matter Interacting Systems
  • 2D Heterostructures
  • Moiré superlattices

contact info:

mailing address:

    MSC 1105-109-02
    ST. LOUIS, MO 63130-4899

Xi Wang’s lab utilizes cutting-edge magneto optical and optoelectronic microscopy and spectroscopy to probe and control excitons, electrons, phonons, magnons et al. in quantum materials for applications in quantum simulation and quantum communication.

Xi Wang received her BS in physics from the University of Science and Technology of China (USTC). She then pursued her Ph.D. at Florida State University, studying optoelectronic properties of a new class of hybrid material systems for energy-efficient applications (e.g., solar cells, photodetectors et al.). As an EFRC Postdoctoral Fellow in the Physics Department at the University of Washington, Seattle, working with Prof. Xiaodong Xu and Prof. Daniel Gamelin, Wang’s postdoc research focuses on designing, fabricating, and characterizing high-quality heterostructures made from two-dimensional (2D) materials. She studies the excitonic-related quantum many-body interactions in moiré superlattices. She is going to join the faculty at Washington University in St. Louis in Jan. 2024.

Naturally reduced by one-dimensionality, atomically thin 2D materials provide an ideal testbed to explore quantum phenomena. The weak Van der Waals interactions between 2D layers enable the exfoliation of such a class of materials down to the monolayer limit. Twisting between two monolayers leads to the formation of new periodical potentials. The lattices with the new periodicities are so-called moiré superlattices. Moiré Superlattices based on two-dimensional heterostructures have emerged as a promising platform to simulate strongly correlated systems. 

Xi Wang’s lab currently focuses on four primary research directions: (1) Investigating novel moiré-induced magnetic properties in twisted 2D layers; (2) Fabricating unique two-dimensional or mixed-dimensional heterostructures with tailored artificial superlattices; (3) Developing dynamic simulators with in-situ tunability of properties in quantum materials and devices; (4) Exploring advanced quantum optoelectronics based on highly efficient low-dimensional perovskites.

Professional History:

2024-present: Assistant Professor, Washington University in St. Louis
2019-2023: Postdoctoral Scholar, University of Washington