By Topic

Effect of interaction on the magnetization of single-domain particles

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
$33 $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)
E. Torre ; Rutgers University, New Brunswick, NJ

A model is proposed to permit the calculation of the remanence in a magnetic tape that is subject to various magnetizing processes. A combination of a regenerative local field and the Preisach diagram is proposed to account for particle interaction. It is shown that, although the Preisach diagram is not stable, its shape does not have to change as it moves, due to changes in the bulk magnetization I. In fact, the Preisach density function J(H+, H-) could be replaced by J(H+ + αI, H- -αI). The regenerative action is necessary to reduce the calculated spread of the distribution, which is many times the observed value. The best agreement between calculation and experiments is obtained by assuming that the fundamental magnetic particle is spherical, which is consistent with the "chain of spheres" model for interaction-free magnetization.

Published in:

IEEE Transactions on Audio and Electroacoustics  (Volume:14 ,  Issue: 2 )