Spin Dynamics
We study the dynamics of paramagnets and exchange-coupled spin systems by magnetic resonance spectroscopy. We are interested in extracting fundamental material parameters like magnetic damping, anisotropy and exchange in a wide range of material classes. Furthermore, we apply broadband magnetic resonance to study dynamics of topologically nontrivial magnets and spin-orbit torques. Experimental facilities include:
- Broadband, coplanar waveguide based magnetic resonance in a frequency range up to 50 GHz and magnetic fields up to 2.7 T provided by a room-temperature electromagnet
- 3D vector-magnet cryostat capable of applying up to 2.5 T in any direction, with temperature ranging from 1.7 K to 300 K and frequency up to 50 GHz.
- Broadband magnetic resonance at ultralow temperatures (below 100 mK)
- Quantitative phase-resolved magnetic resonance using vector network analysis
- Cavity based magnetic resonance at 10 GHz and 24 GHz with temperatures from 4 K to 300 K
- Frequency-resolved magneto-optic Kerr effect for spatially resolved magnetic resonance studies at room temperature
- Access to a micro focused room-temperature Brillouin Light Scattering facility through the Nanosystems Initiative Munich (NIM).
Recent publications
Strong evidence for d-electron spin transport at room temperature at a LaAlO3/SrTiO3 interface |
Tunable magnon-photon coupling in a compensating ferrimagnet - from weak to strong coupling |
Gilbert damping of magnetostatic modes in a yttrium iron garnet sphere |
Combined Brillouin light scattering and microwave absorption study of magnon-photon coupling in a split-ring resonator/YIG film system |