Cart (Loading....) | Create Account
Close category search window

A physical model of spin ferromagnetism

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Harrison, R.G. ; Dept. of Electron., Carleton Univ., Ottawa, Ont., Canada

This paper derives a mathematical model for the hysteresis characteristics of spin-ferromagnetic materials on a quantum-mechanical basis. For a given material, the model provides a link between the micromagnetic behavior at the atomic/domain levels and the details of the scalar hysteresis loop at the macroscopic level. Physical input parameters of the model consist of the Curie temperature, the sample temperature, the saturation magnetization, and the intrinsic coercivity. The parameters of the mathematical model are the reduced temperature t, the Weiss coefficient α, a new quantity called the domain coefficient β, and a single pinning coefficient γ that defines the anhysteretic magnetization. Quantitative agreement with the measured hysteresis data of a wide range of materials, including temperature dependence, is good. The model is valid for materials with intrinsic coercivities ranging over 6 orders of magnitude.

Published in:

Magnetics, IEEE Transactions on  (Volume:39 ,  Issue: 2 )

Date of Publication:

Mar 2003

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.