用基于晶格的方法量化微磁学中的拓扑电荷

IOP SciNotes Pub Date : 2020-06-23 DOI:10.1088/2633-1357/abad0c

Joo-Von Kim, Jeroen Mulkers

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引用次数: 13

摘要

为开源微磁学代码mumax3提供了一种计算拓扑skyrmion电荷的基于晶格的方法的实现。在三个不同的测试案例中，比较了它相对于现有的基于有限差分导数的方法的准确性。基于晶格的方法被发现对有限温度动力学以及扩展系统中的成核和湮灭过程更具鲁棒性。

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

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.

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IOP SciNotes

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0.00%

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审稿时长

14 weeks