On the computation of the demagnetization tensor field for an arbitrary particle shape using a Fourier space approach
Academic Article
Publication Date:
2003
Short description:
On the computation of the demagnetization tensor field for an arbitrary particle shape using a Fourier space approach / Beleggia, M; De Graef, M. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 263:1-2(2003), pp. L1-L9. [10.1016/S0304-8853(03)00238-5]
abstract:
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.
Iris type:
Articolo su rivista
Keywords:
Demagnetization energy; Demagnetization tensor field; Magnetometric demagnetization tensor; Shape amplitude; Tetrahedron;
List of contributors:
Beleggia, M; De Graef, M
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