Static magnetic solution in magnetic composites with arbitrary susceptibility inhomogeneity and anisotropy

J. J. Wang, Y. Song, X. Q. Ma, Long Qing Chen, Ce Wen Nan

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

The static magnetic solutions in magnetic composites with arbitrary susceptibility inhomogeneity and anisotropy are accurately computed using an efficient numerical algorithm based on a proposed Fourier spectral iterative perturbation method for 3-dimensional systems. An advantage of this method is that the interphase boundary conditions are automatically considered without explicitly tracking interphase interfaces in the composites. This method can be conveniently implemented in phase-field modeling of microstructure evolution in systems with inhomogeneous susceptibility as well as inhomogeneous spontaneous magnetization distributions. Based on the proposed method, the effects of microstructures including the susceptibility mismatch between the inclusions and matrix, inclusions volume fraction, and inclusions arrangement on the effective susceptibility and local static magnetic field distribution of the composite are investigated. It is found that the interactions among the inclusions embedded in the matrix play critical roles in determining the composite properties.

Original languageEnglish (US)
Article number043907
JournalJournal of Applied Physics
Volume117
Issue number4
DOIs
StatePublished - Jan 28 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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