Interview for Faculty Position

Revealing The Static And Dynamic Electronic Structure In Advanced Materials - Examples From Graphene And Manganites

Shuyun Zhou

Advanced Light Source
Lawrence Berkeley National Laboratory

Obtaining direct information about the electronic structure both in equilibrium and in the excited state is critical for understanding the fundamental physics in advanced materials. Soft X-ray spectroscopies and time-resolved pump-probe techniques are powerful tools that can be utilized to extract such important information directly. I will first present our angle-resolved photoemission spectroscopy (ARPES) studies of graphene to reveal the peculiar dispersions of valence electrons and the band gap opening which points to graphene-substrate as a promising route for band gap engineering. I will then present our recent results on maganites to show how localized electronic ordering and its dynamics can be extracted via static and time-resolved resonant soft x-ray scattering (RSXS). Finally I will discuss my future perspectives of extending these spectroscopic studies to the time-resolved regime with controlled and selective excitation.