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Exchange coupled composite layers for magnetic recording

On the basis of the theory of micromagnetism we have analytically calculated the nucleation and depinning fields of composite exchange coupled spring systems composed of soft and hard magnetic layers. The values of the critical fields sensitively depend on the thicknesses of the layers and determine...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2008-02, Vol.403 (2), p.338-341
Main Authors: Goll, D., Macke, S., Kronmüller, H.
Format: Article
Language:English
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Summary:On the basis of the theory of micromagnetism we have analytically calculated the nucleation and depinning fields of composite exchange coupled spring systems composed of soft and hard magnetic layers. The values of the critical fields sensitively depend on the thicknesses of the layers and determine the shape of the corresponding hysteresis loop. The quality of the analytical calculations is verified by numerical micromagnetic simulations.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2007.08.044