6 papers
Coherent control of Floquet-engineered magnon frequency combs
Christopher Heins, Amelie L. Fehrmann, Lukas Körber +5
Frequency combs represent a hallmark of coherence emerging from nonlinear dynamics, where periodic driving organizes energy into a precisely spaced spectral structure. Extending th…
Electrical magnon spectroscopy with foundry-fabricated nanoscale magnetic tunnel junctions
Christopher Heins, Zeling Xiong, Attila Kákay +10
Magnonics uses spin waves and their quanta, magnons, to carry and process information and offers new opportunities for computing and signal processing. Its integration with convent…
Excitation of vortex core gyration in nanopillars through driven Floquet magnons
Gauthier Philippe, Joo-Von Kim
The dynamics of vortex states in confined geometries like thin-film disks are characterized by a sub-GHz gyration, representing the damped oscillatory motion of the vortex core abo…
Benchmarking a magnon-scattering reservoir with modal and temporal multiplexing
Christopher Heins, Joo-Von Kim, Lukas Körber +3
Physical reservoir computing has emerged as a powerful framework for exploiting the inherent nonlinear dynamics of physical systems to perform computational tasks. Recently, we pre…
Control of magnon frequency combs in magnetic rings
Christopher Heins, Attila Kákay, Joo-Von Kim +4
Using Brillouin light scattering microscopy, we study the rich dynamics in magnetic disks and rings governed by non-linear interactions, focusing on the role of vortex core dynamic…
Self-induced Floquet magnons in magnetic vortices
Christopher Heins, Lukas Körber, Joo-Von Kim +6
Driving condensed matter systems with periodic electromagnetic fields can result in exotic states not found in equilibrium. Termed Floquet engineering, such periodic driving applie…