Optical generation and detection of spin transport (B03)

• Subject Area: Experimental Condensed Matter Physics
• Term: from 2015 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 249492093

Spin currents are indispensable for future spintronic devices. Here we both experimentally and theoretically investigate spin currents in semiconductors and nanostructures. We have established a versatile concept to detect these spin currents with a simultaneous spatial and temporal resolution of micrometers and picoseconds, respectively. In the second funding period we further investigate tuning knobs, e.g., optical doping and static electric fields, for the effective strength of the spin-orbit interaction. We will apply also these concepts to more sophisticated material systems, in particular to dilute magnetic semiconductors and, potentially, to hybrid structures with conventional ferromagnets.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 160: Coherent manipulation of interacting spin excitations in tailored semiconductors
• Applicant Institution: Technische Universität Dortmund
• Co-Applicant Institution: Russian Academy of Sciences ; Ioffe Institute, until 2/2022
• Project Heads: Professor Dr. Markus Betz; Dr. Leonid .E. Golub, until 2/2022; Dr. Claudia Ruppert; Dr. Sergey A. Tarasenko, from 1/2019 until 2/2022