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arXiv · 0810.5391

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

Markus Weigand·Bartel Van Waeyenberge·Arne Vansteenkiste·Michael Curcic·Vitalij Sackmann·Hermann Stoll·Tolek Tyliszczak·Konstantine Kaznatcheev·Drew Bertwistle·Georg Woltersdorf·Christian H. Back·Gisela Schütz
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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.

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Markus Weigand, Bartel Van Waeyenberge, Arne Vansteenkiste, Michael Curcic, Vitalij Sackmann, Hermann Stoll, Tolek Tyliszczak, Konstantine Kaznatcheev, Drew Bertwistle, Georg Woltersdorf, Christian H. Back, Gisela Schütz. 2009-02-18. Vortex core switching by coherent excitation with single in-plane magnetic field pulses. https://doi.org/10.1103/physrevlett.102.077201

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