Third Funding Period 2024-2027:

B13  Spin+Torque: Spin-orbit dynamics in magnetic hybrids

Prof. Dr. Mathias Weiler (Department of Physics, RPTU)
Dr. Alexander Mook (Institute of Physics, JGU)

In Project B13, we are exploring the control of magnetization dynamics by orbital torques from electrical currents and phonons. We will address magnon propagation in the presence of current-induced torques stemming from the orbital Hall effect and magnon damping by orbital pumping. In a joint theoretical/experimental effort, we will explore the phonon-induced orbital torques stemming from elliptically polarized phonons with orbital angular momentum and develop a quantitative theory of phonon-induced torques in linear and non-linear regimes.

Second Funding Period 2020-2023:

B13  Spin+Spin-orbit torque: Spin dynamics and spin-orbit torques in magnetic hybrids

Prof. Dr. Mathias Weiler (Department of Physics, RPTU)

Within this project, we experimentally explore coupled spin dynamics and spin-orbit torques (SOTs) in thin film heterostructures containing multiple magnetically ordered layers. The symmetry breaking by the magnetic order will be used to generate additional SOT symmetries. The spin-dynamical interactions in these heterostructures can furthermore give rise to complex coupled antiferromagnetic / ferromagnetic magnetization dynamics. We will exploit such hybrid excitations and magnetic SOTs for the electrical control of spin waves in magnonic devices.