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Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires

Hirohata, A., Yao, C.C., Hasko, D.G., Lee, W.Y., Xu, Y.B. and Bland, J.A.C. (1999) Influence of lateral geometry on magnetoresistance and magnetisation reversal in Ni80Fe20 wires. IEEE Transactions on Magnetics. pp. 2865-2867. ISSN 1941-0069

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The magnetisation reversal processes and magnetoresistance behaviour in micron-sized Ni80Fe20 wires with triangular and rectangular modulated width have been studied. The wires were fabricated by electron beam lithography and a lift-off process. A combination of magnetic force microscopy (MFM), magneto-optical Kerr effect (MOKE) and magnetoresistance (MR) measurements shows that the lateral geometry of the wires greatly influences the magnetic and transport properties. The width modulations modify not only the shape-dependent demagnetising fields, but also the current density. The correlation between the lateral geometry, the magnetic and the transport properties is discussed based on MFM, MOKE and MR results.

Item Type: Article
Copyright, Publisher and Additional Information: © 1999 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: magnetoresistance,magnetisationation reversal,MFM,MOKE
Institution: The University of York
Academic Units: The University of York > Electronics (York)
Depositing User: Repository Officer
Date Deposited: 18 Dec 2006
Last Modified: 02 May 2016 06:01
Published Version: http://dx.doi.org/10.1109/20.801007
Status: Published
Refereed: Yes
URI: http://eprints.whiterose.ac.uk/id/eprint/1852

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