Semi-Implicit Steepest Descent Method for Energy Minimization and Its Application to Micromagnetic Simulation of Permanent Magnets

被引：11

作者：

Furuya, Atsushi ^{[1
]}

Fujisaki, Jun ^{[1
]}

Shimizu, Koichi ^{[1
]}

Uehara, Yuji ^{[1
]}

Ataka, Tadashi ^{[1
]}

Tanaka, Tomohiro ^{[1
]}

Oshima, Hirotaka ^{[2
]}

机构：

[1] Fujitsu Ltd, Kawasaki, Kanagawa 2118588, Japan

[2] Fujitsu Labs Ltd, Atsugi, Kanagawa 2430197, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 11期

关键词：

Coercivity; energy minimization; M-H curve; micromagnetics; parallel computing; permanent magnets; semi-implicit integration; simulation;

D O I：

10.1109/TMAG.2015.2439290

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report an acceleration method for evaluating the coercivity and the M-H curve of a magnetic material based on micromagnetic simulation. To avoid stability constraint of explicit schemes, we examine a semi-implicit integration for the steepest descent method to find the local minimum state. The present method is applied to simulate a magnetization reversal process in the simplified microstructure of permanent magnets, and a major improvement of calculation speed is achieved to simulate the M-H curve of permanent magnets correctly.

引用

页数：4

共 12 条

[1] SOLVING MICROMAGNETIC PROBLEMS - TOWARDS AN OPTIMAL NUMERICAL-METHOD [J].