Modeling High-Order Ferromagnetic Hysteretic Minor Loops and Spirals Using a Generalized Positive-Feedback Theory

Author

Harrison, Robert G.

Author_Institution

Dept. of Electron., Carleton Univ., Ottawa, ON, Canada

Volume

48

Issue

3

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

1115

Lastpage

1129

Abstract

A generalization of the previously-described positive-feedback theory of first- and second-order reversal curves permits modeling of minor loops of arbitrarily high order n. The validity of the theory is tested by using it to model various types of high-order phenomena (n ≥3), including symmetrical and asymmetrical spirals as well as closed minor loops, in a variety of different hard and soft ferromagnetic materials that exhibit the return-point memory property.

Keywords

demagnetisation; feedback; ferromagnetism; magnetic hysteresis; magnetisation reversal; soft magnetic materials; asymmetrical spirals; first-order reversal curves; generalized positive-feedback theory; hard ferromagnetic materials; high-order ferromagnetic hysteretic minor loops; high-order ferromagnetic hysteretic minor spirals; high-order phenomena; return-point memory property; second-order reversal curves; soft ferromagnetic materials; symmetrical spirals; Demagnetization; Hysteresis; Magnetic domains; Magnetic hysteresis; Magnetization; Materials; Spirals; Anhysteresis; demagnetizing spiral; energy summation; high-order loop; high-order return curve; hysteresis; magnetization; minor loop; recoil loop; return-point memory;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2170846

Filename

6035978