期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 548, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2021.168875
关键词
Micromagnetics; Standard problem; Domain wall pinning; Multiphase material; Exchange discontinuity
资金
- Austrian Science Fund (FWF) [I4917]
- Austrian Federal Ministry for Digital and Economic Affairs
- National Foundation for Research, Technology and Development
- Christian Doppler Research Association
- Austrian Science Fund (FWF) [I4917] Funding Source: Austrian Science Fund (FWF)
In this paper, we propose a novel micromagnetic standard problem for calculating the coercive field required to unpin a domain wall at the interface of a multiphase magnet. This problem is sensitive to discontinuities in material parameters such as the exchange interaction, uniaxial anisotropy, and spontaneous magnetization. We derive an explicit treatment of the jump conditions at material interfaces for the exchange interaction in the finite-difference discretization. The micromagnetic simulation results are compared with analytical solutions, showing good agreement. The proposed standard problem is suitable for testing the implementation of both finite-difference and finite-element simulation codes.
We propose a novel micromagnetic standard problem calculating the coercive field for unpinning a domain wall at the interface of a multiphase magnet. This problem is sensitive to discontinuities in material parameters for the exchange interaction, the uniaxial anisotropy, and the spontaneous magnetization. We derive an explicit treatment of jump conditions at material interfaces for the exchange interaction in the finite-difference discretization. The micromagnetic simulation results are compared with analytical solutions and show good agreement. The proposed standard problem is well-suited to test the implementation of both finite-difference and finite-element simulation codes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据