On the computation of the demagnetization tensor for uniformly magnetized particles of arbitrary shape. Part I: Analytical approach

S. Tandon, M. Beleggia, Y. Zhu, M. De Graef

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A Fourier space formalism based on the shape amplitude of a particle is used to compute the demagnetization tensor field for uniformly magnetized particles of arbitrary shape. We provide a list of explicit shape amplitudes for important particle shapes, among others: the sphere, the cylindrical tube, an arbitrary polyhedral shape, a truncated paraboloid, and a cone truncated by a spherical cap. In Part I of this two-part paper, an analytical representation of the demagnetization tensor field for particles with cylindrical symmetry is provided, as well as expressions for the magnetostatic energy and the volumetric demagnetization factors.
Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume271
Issue number1
Pages (from-to)9-26
Number of pages18
ISSN0304-8853
DOIs
Publication statusPublished - 2004
Externally publishedYes

Keywords

  • Demagnetization tensor field
  • Shape amplitude
  • Magnetometric demagnetization tensor
  • Demagnetization energy

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