Subcycle strong-field dynamics of Dirac fermions (A05)

• Subject Area: Experimental Condensed Matter Physics
• Term: since 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 314695032

Lightwave-driven relativistic electron motion will be directly visualized in actual band-structure movies. By combining strong mid-infrared fields with photoemission momentum microscopy of the entire first Brillouin zone, we will merge subcycle band-structure videography with in-situ high-harmonic and high-order sideband generation. In four work packages, we will capture Dirac-fermion motion in topological insulators, Landau-Zener tunneling and Zitterbewegung in graphene, valleytronic control in TMDCs, and relativistic effects in moiré superlattices.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1277: Emergent Relativistic Effects in Condensed Matter: From Fundamental Aspects to Electronic Functionality
• Applicant Institution: Universität Regensburg
• Project Heads: Professor Dr. Rupert Huber; Dr. Markus A. Huber; Professor Dr. Ulrich Höfer, since 1/2026