NDLI: A predictive model for the permeability tensor of magnetized heterogeneous materials

Content Provider	IEEE Xplore Digital Library
Author	Queffelec, P. Bariou, D. Gelin, P.
Copyright Year	1965
Abstract	This paper describes a mathematical model enabling the calculation of the effective permeability tensor of heterogeneous magnetic materials set in various magnetization states. The theoretical approach we propose permits to predict the microwave behavior of unsaturated magnetic loaded composites as well as those of unsaturated polycrystalline ferrites. The model gives all the complex components of the permeability tensor in a single calculation phase whatever the magnetization state of the material is. This is useful for the computer-aided design of microwave magnetic devices. The calculation of the effective permeability tensor is carried out from a limited number of parameters: saturation magnetization, anisotropy field, damping factor, external dc field strength, concentration, and shape of the magnetic particles or domains. The model is predictive in the way that the magnetization state of the material is determined from the strength of the external dc magnetic field applied on the material.
Sponsorship	IEEE Magnetics Society
Starting Page	17
Ending Page	23
Page Count	7
File Size	643819
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic materials Predictive models Permeability Tensile stress Saturation magnetization Magnetic anisotropy Perpendicular magnetic anisotropy Mathematical model Microwave devices Ferrites permeability magnetic hysteresis nonhomogeneous media
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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