Magnetization distributions in bulk magnetic material

Author

Archer, Wendel E. ; Guancial, Edward

Author_Institution

Bell Laboratories, Columbus, Ohio

Volume

9

Issue

1

fYear

1973

fDate

3/1/1973 12:00:00 AM

Firstpage

51

Lastpage

56

Abstract

Knowledge of the internal magnetization distributions $M(r)$ of polarizable media allows straightforward calculation of fields for any configuration which includes these media. Although useful calculations have been made using an assumed $M(r)$ , little work directed at calculating $M(r)$ has been done. This paper includes assumptions that, in addition to Maxwell\´s equations, are sufficient for determining the resultant integral equation. A method for the solution of this equation for $M(r)$ is also presented. As an example, the nonuniform demagnetizing fields and magnetization distributions are calculated for cylinders of isotropic magnetic material. The results for these samples are compared with experimentally determined values and show average errors less than 9 percent for $M(r)$ .

Keywords

Magnetic materials; Magnetization processes; Crystals; Geometry; Integral equations; Magnetic anisotropy; Magnetic field measurement; Magnetic materials; Magnetization; Perpendicular magnetic anisotropy; Soft magnetic materials; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1973.1067568

Filename

1067568