Evaluation of the anisotropy constant using transverse biased initial susceptibility method

Author

Aranda, G.R. ; Chubykalo, O.A. ; Gonzalez, Jose ; González, J.

Author_Institution

IBM Res. Div., Almaden Res. Center, San Jose, CA, USA

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3260

Lastpage

3262

Abstract

After the results obtained from the simulation of the behavior of a 2D uniaxial micromagnetic model, we discuss the applicability of the Hoffmann model to the analysis of the experimental transverse susceptibility data and, more specifically, the possibility of obtaining from those data the anisotropy constant. According to our conclusions, the Hoffmann model is only appropriate to describe highly anisotropic, finite size systems having dimensions larger than the exchange and magnetostatic correlation lengths and having known local anisotropy distributions

Keywords

magnetic anisotropy; magnetic susceptibility; 2D uniaxial micromagnetic model; Hoffmann model; anisotropy constant; exchange correlation length; finite size effect; magnetostatic correlation length; numerical simulation; transverse biased initial susceptibility; Anisotropic magnetoresistance; Equations; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic moments; Magnetostatics; Micromagnetics; Perpendicular magnetic anisotropy; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908761

Filename

908761