Vortex Core Switching by Coherent Excitation with Single In-Plane Magnetic Field Pulses
Vortex Core Switching by Coherent Excitation with Single In-Plane Magnetic Field Pulses
The response of magnetic vortex cores to subnanosecond in-plane magnetic field pulses was studied by time-resolved x-ray microscopy. Vortex core reversal was observed and the switching events were located in space and time. This revealed a mechanism of coherent excitation by the leading and trailing edges of the pulse, lowering …