In recent years, time-resolved spectroscopic techniques have garnered ample interest in two major fields, namely physics of magnetic spin devices and surface chemistry of catalysts. While angle-resolved photoemission spectroscopy (ARPES) has evolved as an advanced method in probing the band structure across magnetic phase transitions, particularly in antiferromagnetic spin materials; ultrafast spectroscopy has evolved as major tool to probe spin dynamics in different magnetic materials and van der Waals heterostructures. Operando Raman and diffuse reflectance Fourier transform infrared (DRIFT) spectroscopic techniques under normal, and time modulation-excitation (ME) conditions have provided new insights in terms of surface-active sites and active species (vs. spectator species) in major catalytic processes like CO2 capture, reverse water gas shift (RWGS), oxidative dehydrogenation reaction (ODH). In this symposium, we propose to address the advancements in bulk and surface-specific spectroscopic methods in two prime interdisciplinary topics that eventually aim at advanced material design.
- Ultrafast spectroscopy
- Operando spectroscopy
- Catalytic mechanisms
- Band structure
I am a surface physicist and currently an Alexander von Humboldt Fellow at Technische Universitat Darmstadt. I work primarily in operando spectroscopy of field induced gas sensors and elucidate the quantum origin of surface interactions in van der Waals (vdW) materials. Prior to this I have been a postdoctoral fellow with Prof. Efrat Lifshitz at the Technion, Israel. There I worked on magneto-optical studies of vdW materials under intercalation. I completed my PhD in Physics on structure-property correlation in surface mechanisms of solid state gas sensors from CSIR Central Glass and Ceramic Research Institute, Kolkata, India.