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

doi:10.1103/PhysRevLett.102.077201

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

Other Condensed Matter 2009-11-13 v2

Authors: 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.

Keywords

magnetic vortex vortex core switching in-plane magnetic field pulse coherent excitation time-resolved x-ray microscopy micromagnetic simulation data storage

Cite

@article{arxiv.0810.5391,
  title  = {Vortex core switching by coherent excitation with single in-plane magnetic field pulses},
  author = {Markus Weigand and Bartel Van Waeyenberge and Arne Vansteenkiste and Michael Curcic and Vitalij Sackmann and Hermann Stoll and Tolek Tyliszczak and Konstantine Kaznatcheev and Drew Bertwistle and Georg Woltersdorf and Christian H. Back and Gisela Schütz},
  journal= {arXiv preprint arXiv:0810.5391},
  year   = {2009}
}

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4 pages, 3 figures

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

Abstract

Keywords

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