HIGH ACCURACY NUMERICAL METHOD OF THIN-FILM PROBLEMS IN MICROMAGNETICS

• 来源期刊: 计算数学（英文版）
• 学科: 数学
• 关键词: Thin-film Micromagnetics stray field Semi-discrete artificial boundary condition.
• 年，卷（期）: 2003,（1）
• 页码范围: 33-40
• 页数: 8页
• 分类号: O1
• 语种: 英文

摘要

In this paper, a new high accuracy numerical method for the thin-film problems ofmicron and submicron size ferromagnetic elements is proposed. For the computation ofstray field, we use the finite element method(FEM) by introducing a semi-discrete artificialboundary condition [1, 2]. In our numerical experiments about the domain patterns andtheir movement, we can see that the results are accordant to that of experiments and othernumerical methods. Our method are very convenient to deal with arbitrary shape of thinfilms such as a polygon with high accuracy.