Vortex core switching by coherent excitation with single in-plane magnetic field pulses

Abstract

The bistability of the core magnetization of nano-scaled magnets with a magnetic vortex configuration has great potential for data storage applications. To exploit this, reliable switching between the two possible states is needed. Time resolved x-ray microscopy was used to study the response of the vortex core to excitation pulses at sub-ns timescales and image the vortex core switching. A reliable switching process by coherent excitation with leading and trailing edges of in-plane magnetic field pulses was found and compared with micromagnetic simulations.

4 pages, 3 figures

References in corpus (4)

• Electrical switching of vortex core in a magnetic disk
• Dynamic Origin of Vortex Core Switching in Soft Magnetic Nanodots
• Polarisation selective magnetic vortex dynamics and core reversal in rotating magnetic fields
• Switching magnetic vortex core by a single nanosecond current pulse

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