Element specific view on ultrafast spin and orbital angular momentum redistribution (A03)

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

We plan to develop the ultrafast creation of orbital excitations, observed in 4f systems within the 1st funding period, into a tool to control the magnetic anisotropy on ultrafast time scales. In terms of detection, we will turn the complementary use of magnetic spectroscopy in the EUV and soft-X-ray regimes available within the CRC/TRR into a quantitative probe for the locality of spin excitations. We aim to advance the understanding of antiferromagnetic dynamics both in terms of sample design and X-ray spectroscopic methods, and to develop the instrumentation and methods to detect spin dynamics induced by the injection of spin currents.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 227: Ultrafast Spin Dynamics
• Applicant Institution: Freie Universität Berlin
• Project Heads: Professor Dr. Alexander Föhlisch, until 12/2021; Dr. Niko Pontius; Dr. Christian Schüßler-Langeheine