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Related Experiment Videos

Dynamic vortex-antivortex interaction in a single cross-tie wall.

K Kuepper1, M Buess, J Raabe

  • 1Forschungszentrum Dresden-Rossendorf, Post Office Box 51 01 19, D-01314 Dresden, Germany. k.kuepper@fzd.de

Physical Review Letters
|November 13, 2007
PubMed
Summary
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Nonlocal Stimulation of Three-Magnon Splitting in a Magnetic Vortex.

Physical review letters·2020

We explored magnetization dynamics in micromagnetic cross-tie walls, revealing how vortex-antivortex interactions can identify core configurations. This offers insights into controlling magnetic domain structures.

Area of Science:

  • Physics
  • Materials Science

Background:

  • Micromagnetism allows control of magnetic domain and vortex configurations via sample shape and size.
  • Rectangular platelets can host stable vortex-antivortex configurations within a single cross-tie wall.

Purpose of the Study:

  • Investigate the magnetization dynamics of a coupled micromagnetic system with three static solitons.
  • Analyze vortex-antivortex interactions and their effect on the system's eigenmodes.

Main Methods:

  • Simulated magnetization dynamics of a cross-tie wall in a rectangular platelet.
  • Analyzed the spectrum of eigenmodes and the influence of vortex core orientations.

Main Results:

  • Characterized the magnetization dynamics, including vortex-antivortex interactions.

Related Experiment Videos

  • Demonstrated that vortex dynamics can reveal core configurations.
  • Showcased the limitations of x-ray microscopy for resolving these configurations due to spatial resolution.

    • Conclusions:

    • The study elucidates the complex dynamics within micromagnetic cross-tie walls.
    • Vortex dynamics serve as a viable method for identifying core configurations, overcoming limitations of current imaging techniques.