[Zurück]

R. Dittrich, T. Schrefl, D. Süss, W. Scholz, H. Forster, J. Fidler:
"A path method for finding energy barriers and minimum energy paths in complex micromagnetic systems";
Journal of Magnetism and Magnetic Materials, 250 (2002), S. L12 - L19.

A path method for finding energy barriers and minimum energy paths in complex micromagnetic systems

R. Dittrich [Corresponding Author Contact Information] , [E-mail The Corresponding Author] , T. Schrefl, D. Suess, W. Scholz, H. Forster and J. Fidler

Institute for Solid State Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, A-1040, Vienna, Austria

Received 18 March 2002; revised 15 May 2002. Available online 12 June 2002.

Abstract

Minimum energy paths and energy barriers are calculated for complex micromagnetic systems. The method is based on the nudged elastic band method and uses finite-element techniques to represent granular structures. The method was found to be robust and fast for both simple test problems as well as for large systems such as patterned granular media. The method is used to estimate the energy barriers in CoCr-based perpendicular recording media.

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