Behavior of μMAG standard problem No. 2 in the small particle limit

被引：31

作者：

Donahue, MJ ^{[1
]}

Porter, DG

McMichael, RD

Eicke, J

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[2] George Washington Univ, Inst Magnet Res, Washington, DC 20052 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期

关键词：

D O I：

10.1063/1.373391

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For a uniformly magnetized rectangular particle with dimensions in the ratio 5 : 1 : 0.1, the coercive and switching fields in the (1,1,1) direction are determined to be H-c/M-s = 0.057069478 and H-s/M-s = 0.057142805. Previous micromagnetic computations of coercive and switching fields that did not approach these values for small particles are analyzed. It is shown that the disagreement was primarily due to a disparity in the method of calculating demagnetization energy. Corrected simulations are shown to agree with analytically determined values. (C) 2000 American Institute of Physics. [S0021-8979(00)81708-9].

引用

页码：5520 / 5522

页数：3

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