Spin+THz-dynamics: Understanding and utilizing photon-to-magnon conversion processes (B11)

Project B11 combines ultrafast demagnetisation processes and magnonics, two important areas of spin dynamics that have essentially been treated separately until now. By extending the combined setup to study ultrafast demagnetization and subsequent remagnetization by time-resolved magneto-optical Kerr effect measurements and simultaneous study of the magnon spectrum by Brillouin light scattering spectroscopy and THz excitation and detection methods, the mechanisms driving the relaxation from ultrafast demagnetization to remagnetization and possible control of these processes by resonant/non-resonant electromagnetic fields will be determined.

DFG Programme CRC/Transregios

Subproject of TRR 173:  Spin+X: Spin in its collective environment

Applicant Institution Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau

Project Heads Professor Dr. Martin Aeschlimann; Professor Dr. Georg von Freymann; Professor Dr. Philipp Pirro