3 papers
cond-mat.mtrl-sci2019
Non-collinear antiferromagnetic states in Ru-based Heusler compounds induced by biquadratic coupling
Eszter Simon, Andreas Donges, László Szunyogh +1
We investigate the magnetic properties of RuMn ( = Sn, Sb, Ge, Si) chemically ordered full Heusler compounds for zero as well as finite temperatures. Based on first pri…
cond-mat.mtrl-sci2019
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…
cond-mat.mtrl-sci2019
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…