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Modeling of long-time thermal magnetization decay in interacting granular magnetic materials

Chubykalo-Fesenko, O and Chantrell, R W (2005) Modeling of long-time thermal magnetization decay in interacting granular magnetic materials. IEEE TRANSACTIONS ON MAGNETICS. pp. 3103-3105. ISSN 0018-9464

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Abstract

We present a general method to evaluate the long-time magnetization decay in granular magnetic systems. The method is based on Arrhenius-Neel kinetics with the evaluation of the energy barriers in a multidimensional space. To establish a possible reversal mode, we suggest the use of Metropolis Monte Carlo and for the mode statistical sampling-the kinetic Monte Carlo criteria. The examples considered include long-time magnetization decay in CoCrPt low-magnetization longitudinal recording media and in a collection of Co particles with different concentrations.

Item Type: Article
Copyright, Publisher and Additional Information: © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: energy barrier, magnetic viscosity, micromagnetics, numerical methods, SIMULATION, SYSTEMS
Academic Units: The University of York > Physics (York)
Depositing User: Repository Officer
Date Deposited: 18 Dec 2006
Last Modified: 17 Oct 2013 14:21
Published Version: http://dx.doi.org/10.1109/TMAG.2005.854888
Status: Published
Refereed: Yes
Related URLs:
URI: http://eprints.whiterose.ac.uk/id/eprint/1833

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