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

Details 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

2008-10-30

arxiv.org/abs/0810.5391v2

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.102.077201

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.

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