Demagnetization field in a uniformly magnetized ellipsoid embedded in an infinite anisotropic media

Floran Martin, Ugur Aydin, Deepak Singh, Laurent Daniel, Paavo Rasilo, Anouar Belahcen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

In this paper, we determine analytically the demagnetization field within a uniformly magnetized ellipsoid embedded in an infinite anisotropic media. The anisotropic boundary condition consists of decomposing the external magnetization into an isotropic part parallel to the external field and an anisotropic part. The resulting demagnetization field within the ellipsoid is then calculated by superposing the demagnetization fields produced by the ellipsoid magnetization, the isotropic part of the external magnetization and field, and the anisotropic part of the external magnetization. Such computation is needed in developing accurate anisotropic multi-scale models of electrical steel sheets, for example.

Original languageEnglish
Title of host publicationIEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation
PublisherIEEE
ISBN (Electronic)9781509010325
DOIs
Publication statusPublished - 12 Jan 2017
MoE publication typeA4 Article in a conference publication
EventIEEE Conference on Electromagnetic Field Computation - Miami, United States
Duration: 13 Nov 201616 Nov 2016
Conference number: 17

Conference

ConferenceIEEE Conference on Electromagnetic Field Computation
Abbreviated titleCEFC
CountryUnited States
CityMiami
Period13/11/201616/11/2016

Keywords

  • Demagnetization field
  • Ellipsoid
  • Elliptic integrals
  • Magneto-static

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    Martin, F., Aydin, U., Singh, D., Daniel, L., Rasilo, P., & Belahcen, A. (2017). Demagnetization field in a uniformly magnetized ellipsoid embedded in an infinite anisotropic media. In IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation [7816202] IEEE. https://doi.org/10.1109/CEFC.2016.7816202