A5002810420- Magneto-Optical Properties and Applications
- Magnetic properties of thin films
- Neural Networks and Reservoir Computing
- Advanced Memory and Neural Computing
- Characterization and Applications of Magnetic Nanoparticles
- Physics of Superconductivity and Magnetism
- Theoretical and Computational Physics
University of Kaiserslautern
2022-2024
Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
2023-2024
University of Koblenz and Landau
2023
Nonlinear phenomena are crucial for magnon-based information processing, but the nonlinear interaction between two spin-wave signals requires their spatiotemporal overlap, which can be challenging directional processing devices. Our study focuses on a gallium-substituted yttrium iron garnet film, exhibits an exchange-dominated dispersion relation and, thus, provides particularly broad range of group velocities compared to pure YIG. Using time- and space-resolved Brillouin light scattering...
We report on the resonant excitation of spin waves in micro-structured magnetic thin films by short-wavelength surface acoustic (SAWs). The as well are studied micro-focused Brillouin light scattering spectroscopy. At low bias fields, a phonon–magnon conversion is possible, which results waves. Using micromagnetic simulations, we verify that during this both energy and linear momentum conserved fully transferred from SAW to wave. This can already be detected after an interaction length few...
We propose a hybrid magnonic-oscillator system based on the combination of spin transfer auto-oscillator and magnonic waveguide to open new perspectives for spin-wave circuits. The is composed oscillator vortex state which dipolarly coupled nanoscale with longitudinal magnetization. In its auto-oscillating regime, emits coherent waves tunable controllable frequencies, directions, amplitudes into waveguide. demonstrate principle this method using micromagnetic simulations show that...
Nonlinear phenomena are key for magnon-based information processing, but the nonlinear interaction between two spin-wave signals requires their spatio-temporal overlap which can be challenging directional processing devices. Our study focuses on a gallium-substituted yttrium iron garnet film, exhibits an exchange-dominated dispersion relation and thus provides particularly broad range of group velocities compared to pure YIG. Using time- space-resolved Brillouin light scattering...