Ultrafast spin dynamics and electronic structure evolution in metallic layered Kagome magnets (A11*)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2026
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 328545488

We investigate ultrafast spin, charge, and orbital dynamics in Kagome magnets using time-resolved spectroscopy and transport techniques. We synthesize high-quality thin films and heterostructures of FeSn, FeGe, and Fe3Sn2, characterizing their structural and magnetic properties. We then employ time- and spin-resolved ARPES, and through collaborations MOKE, and ultrafast diffraction to study demagnetization and charge-density wave dynamics. Finally, we explore the potential for ultrafast spin- and orbitronic devices, using ST-FMR and THz emission to probe orbital currents and exchange bias in magnetic bilayers.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 227: Ultrafast Spin Dynamics
• Applicant Institution: Freie Universität Berlin
• Project Heads: Dr. Banabir Pal, Ph.D.; Professor Dr. Niels Schröter