GPU-Accelerated Atomistic Energy Barrier Calculations of Skyrmion Annihilations

  title={GPU-Accelerated Atomistic Energy Barrier Calculations of Skyrmion Annihilations},
  author={Paul Heistracher and Claas Abert and Florian Bruckner and Christoph Vogler and Dieter Suess},
  journal={IEEE Transactions on Magnetics},
We present GPU-accelerated simulations to calculate the annihilation energy of magnetic skyrmions in an atomistic spin model considering dipole–dipole, exchange, uniaxial-anisotropy, and Dzyaloshinskii–Moriya interactions using the simplified string method. The skyrmion annihilation energy is directly related to its thermal stability, and it is a key measure for the applicability of magnetic skyrmions to storage and logic devices. We investigate annihilations mediated by Bloch points as well as… 

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