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Tailoring the topology of an artificial magnetic skyrmion

Author

Listed:
  • J. Li

    (University of California at Berkeley)

  • A. Tan

    (University of California at Berkeley)

  • K.W. Moon

    (Korea Research Institute of Standards and Science)

  • A. Doran

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • M.A. Marcus

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • A.T. Young

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • E. Arenholz

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • S. Ma

    (University of California at Berkeley)

  • R.F. Yang

    (University of California at Berkeley)

  • C. Hwang

    (Korea Research Institute of Standards and Science)

  • Z.Q. Qiu

    (University of California at Berkeley)

Abstract

Despite theoretical predictions, it remains an experimental challenge to realize an artificial magnetic skyrmion whose topology can be well controlled and tailored so that its topological effect can be revealed explicitly in a deformation of the spin textures. Here we report epitaxial magnetic thin films in which an artificial skyrmion is created by embedding a magnetic vortex into an out-of-plane aligned spin environment. By changing the relative orientation between the central vortex core polarity and the surrounding out-of-plane spins, we are able to control and tailor the system between two skyrmion topological states. An in-plane magnetic field is used to annihilate the skyrmion core by converting the central vortex state into a single domain state. Our result shows distinct annihilation behaviour of the skyrmion core for the two different skyrmion states, suggesting a topological effect of the magnetic skyrmions in the core annihilation process.

Suggested Citation

  • J. Li & A. Tan & K.W. Moon & A. Doran & M.A. Marcus & A.T. Young & E. Arenholz & S. Ma & R.F. Yang & C. Hwang & Z.Q. Qiu, 2014. "Tailoring the topology of an artificial magnetic skyrmion," Nature Communications, Nature, vol. 5(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5704
    DOI: 10.1038/ncomms5704
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