On the computation of the demagnetization tensor field for an arbitrary particle shape using a Fourier space approach

被引：65

作者：

Beleggia, M

De Graef, M ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

[2] Brookhaven Natl Lab, Div Mat Sci, Upton, NY 11973 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 263卷 / 1-2期

关键词：

demagnetization tensor field; shape amplitude; tetrahedron; magnetometric demagnetization tenser; demagnetization energy;

D O I：

10.1016/S0304-8853(03)00238-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A method is presented to compute the demagnetization tensor field for uniformly magnetized particles of arbitrary shape. By means of a Fourier space approach it is possible to compute analytically the Fourier representation of the demagnetization tensor field for a given shape. Then, specifying the direction of the uniform magnetization, the demagnetizing field and the magnetostatic energy associated with the particle can be evaluated. In some particular cases, the real space representation is computable analytically. In general, a numerical inverse fast Fourier transform is required to perform the inversion. As an example, the demagnetization tensor field for the tetrahedron will be given. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：L1 / L9

页数：9

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