Momentum-resolved dynamics of relaxation processes and control of spins and pseudospins in two-dimensional spintronic heterostructures (B07)

• Subject Area: Experimental Condensed Matter Physics
• Term: since 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 328545488

Time- and angle-resolved photoemission spectroscopy with spin and light polarization analysis will be implemented to reconstruct transient orbital and spin textures and to study spin, valley, and orbital dynamics in 2D van der Waals magnets and their heterostructures. We plan to investigate Hund metallicity, a spin-order-driven form of orbital correlation, exciton-spin coupling, spin transfer mechanisms, and domain dynamics to manipulate the magnetic state on ultrafast time scales by tailored optical excitation. In this way, we will gain microscopic insight into the non-equilibrium evolution of the electronic structure in spintronic 2D materials.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 227: Ultrafast Spin Dynamics
• Applicant Institution: Freie Universität Berlin
• Project Heads: Professor Dr. Ralph Ernstorfer; Dr. Cornelius Gahl, since 1/2022; Dr. Tommaso Pincelli; Dr. Laurenz Rettig, from 1/2022 until 12/2025