Ultrafast charge and spin transfer in van-der-Waals heterostructures (B10*)

• Subject Area: Experimental Condensed Matter Physics ; Theoretical Condensed Matter Physics
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 314695032

The occurrence of ultrafast charge separation following photoexcitation of different van der Waals heterostructures can be traced back to the band alignment. The relevant microscopic scattering channels, however, remain poorly understood. In this project, we will combine time- and angle-resolved photoemission spectroscopy – a technique that allows us to investigate ultrafast charge transfer processes with unprecedented detail – with ab initio theory to understand the influence of doping, screening, defects, electron-hole interactions, and the twist angle between the layers on charge and energy transfer.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1277: Emergent Relativistic Effects in Condensed Matter: From Fundamental Aspects to Electronic Functionality
• International Connection: Israel
• Major Instrumentation: ytterbium fibre laser
• Instrumentation Group: 5700 Festkörper-Laser
• Applicant Institution: Universität Regensburg
• Project Heads: Professorin Dr. Isabella Gierz-Pehla; Dr. Sivan Refaely-Abramson