Discretization anisotropy in micromagnetic simulations

Autor:	Holt, Samuel J. R., Petrocchi, Andrea, Lang, Martin, Pathak, Swapneel A., Fangohr, Hans
Rok vydání:	2024
Předmět:	Condensed Matter - Materials Science Physics - Computational Physics
Druh dokumentu:	Working Paper
Popis:	Finite difference based micromagnetic simulations are a powerful tool for the computational investigation of magnetic structures. In this paper, we demonstrate how the discretization of continuous micromagnetic equations introduces a numerical 'discretization anisotropy'. We demonstrate that, in certain scenarios, this anisotropy operates on an energy scale comparable to that of intrinsic physical phenomena. Furthermore, we illustrate that selecting appropriate finite difference stencils and minimizing the size of the discretization cells are effective strategies to mitigate discretization anisotropy. Comment: 5 pages, 4 figures, Supplementary Material https://gitlab.mpcdf.mpg.de/samholt/paper_discretization_anisotropy_supplementary_material
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.10466 Zobrazit plný text záznamu View this record from Arxiv