On quantifying the topological charge in micromagnetics using a lattice-based approach

Joo-Von Kim; Jeroen Mulkers

doi:10.1088/2633-1357/abad0c

On quantifying the topological charge in micromagnetics using a lattice-based approach

Computational Physics 2021-06-24 v2 Materials Science

Authors: Joo-Von Kim , Jeroen Mulkers

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

An implementation of a lattice-based approach for computing the topological skyrmion charge is provided for the open source micromagnetics code MuMax3. Its accuracy with respect to an existing method based on finite difference derivatives is compared for three different test cases. The lattice-based approach is found to be more robust for finite-temperature dynamics and for nucleation and annihilation processes in extended systems.

Keywords

lattice gauge theory

Cite

@article{arxiv.2006.13336,
  title  = {On quantifying the topological charge in micromagnetics using a lattice-based approach},
  author = {Joo-Von Kim and Jeroen Mulkers},
  journal= {arXiv preprint arXiv:2006.13336},
  year   = {2021}
}

Comments

9 pages, 5 figures

Related papers

View all related →