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Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays

Hirohata, A., Gardiner, S.M., Rothman, J., Klaui, M., Lopez-Diaz, L., Chen, Y., Cambril, E., Rousseaux, F., Xu, Y.B., Tselepi, M. and Bland, J.A.C. (2001) Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays. IEEE Transactions on Magnetics. pp. 2055-2057. ISSN 1941-0069

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The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE). The MFM images of the 1 µm diameter single domain dot arrays show direct evidence of strong interdot dipole coupling when the separation is reduced down to 0.1 µm. The coercivity of the dots is also found to be dependent on the separation, indicating the effect of the interdot dipole coupling on the magnetization reversal process.

Item Type: Article
Copyright, Publisher and Additional Information: © 2001 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: Fe dot arrays,interdot coupling,magnetic storage media,micromagnetism
Institution: The University of York
Academic Units: The University of York > Electronics (York)
The University of York > English and Related Literature (York)
Depositing User: Repository Officer
Date Deposited: 18 Dec 2006
Last Modified: 07 May 2016 18:15
Published Version: http://dx.doi.org/10.1109/20.951051
Status: Published
Refereed: Yes
URI: http://eprints.whiterose.ac.uk/id/eprint/1859

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