Periodic boundary conditions for demagnetization interactions in micromagnetic simulations

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2008
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Donahue, Michael J.
Gutowski, Marek W.
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Journal of Physics : D. 2008, 41(7), 175005. Available under: doi: 10.1088/0022-3727/41/17/175005
Zusammenfassung

A new method for the introduction of periodic boundary conditions to the self-magnetostatic (demagnetization) tenn in micromagnetic simulations is described, using an Ewald-like summation method in real space. The long-range character of the dipolar interactions is included without any distance cut-offs. The accumulated errors are carefully monitored to provide easy control of the quality of the results. This allows the calculations to be either accurate up to floating point limitations or less precise when computational speed requirements dominate. This method is incorporated into a full micro magnetic program, and comparisons are made to analytic results.

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ISO 690LEBECKI, Krzysztof, Michael J. DONAHUE, Marek W. GUTOWSKI, 2008. Periodic boundary conditions for demagnetization interactions in micromagnetic simulations. In: Journal of Physics : D. 2008, 41(7), 175005. Available under: doi: 10.1088/0022-3727/41/17/175005
BibTex
@article{Lebecki2008Perio-8904,
  year={2008},
  doi={10.1088/0022-3727/41/17/175005},
  title={Periodic boundary conditions for demagnetization interactions in micromagnetic simulations},
  number={7},
  volume={41},
  journal={Journal of Physics : D},
  author={Lebecki, Krzysztof and Donahue, Michael J. and Gutowski, Marek W.},
  note={Article Number: 175005}
}
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