Evaluation of statistical and mean field magnetostatic interactions using generalized ΔM plots: experiments and Preisach modeling

Author

Bissell, Philip R. ; Cerchez, Mihai ; Chantrell, Roy W. ; Stancu, Alexandru

Author_Institution

Centre for Mater. Sci., Univ. of Central Lancashire, Preston, UK

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2438

Lastpage

2440

Abstract

A new method for evaluation of the statistical and mean interaction fields in a particulate system is described. The Integral Generalized ΔM plot is introduced as the area of the Generalized ΔM plot against the starting remanent magnetic moment for the corresponding remagnetization process. This new plot is sensitive to the shape of the interaction distribution and to the value of the mean interaction field. The Integral Generalized ΔM plot provides an efficient way of distinguishing between the effects of the statistical and mean field interactions

Keywords

magnetic particles; magnetisation; magnetostatics; Preisach modeling; generalized ΔM plots; interaction distribution; mean field magnetostatic interactions; remagnetization process; remanent magnetic moment; Atmospheric modeling; Demagnetization; Magnetic field measurement; Magnetic moments; Magnetic recording; Magnetic separation; Magnetostatics; Physics; Saturation magnetization; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908459

Filename

908459