5 papers
Unveiling domain wall dynamics of ferrimagnets in thermal magnon currents: competition of angular momentum transfer and entropic torque
Andreas Donges, Niklas Grimm, Florian Jakobs +4
Control of magnetic domain wall motion holds promise for efficient manipulation and transfer of magnetically stored information. Thermal magnon currents, generated by temperature g…
High-frequency magnon excitation due to femtosecond spin-transfer torques
Ulrike Ritzmann, Pavel Baláž, Pablo Maldonado +2
Femtosecond laser pulses can induce ultrafast demagnetization as well as generate bursts of hot electron spin currents. In trilayer spin valves consisting of two metallic ferromagn…
Domain wall dynamics due to femtosecond laser-induced superdiffusive spin transport
Pavel Baláž, Karel Carva, Ulrike Ritzmann +2
Manipulation of magnetic domain walls via a helicity-independent laser pulse has recently been experimentally demonstrated and various physical mechanisms leading to domain wall dy…
Terahertz spin dynamics driven by a field-derivative torque
Ritwik Mondal, Andreas Donges, Ulrike Ritzmann +2
Efficient manipulation of magnetization at ultrashort time scales is of particular interest for future technology. Here, we numerically investigate the influence of the so-called f…
Propagation of Thermally Induced Magnonic Spin Currents
Ulrike Ritzmann, Denise Hinzke, Ulrich Nowak
The propagation of magnons in temperature gradients is investigated within the framework of an atomistic spin model with the stochastic Landau-Lifshitz-Gilbert equation as underlyi…