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Magnetization reversal and magnetic anisotropy in Co network nanostructures

Zhang, W., Hirohata, A., Lee, W.Y., Leung, H.T., Xu, Y.B., Yao, C.C., Choi, B.C., Hasko, D.G. and Bland, J.A.C. (1999) Magnetization reversal and magnetic anisotropy in Co network nanostructures. IEEE Transactions on Magnetics. 3475 -3477. ISSN 1941-0069

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The magnetization reversal and magnetic anisotropy in Co network structures have been studied using magneto-optic Kerr effect (MOKE). An enhancement of the coercivity is observed in the network structures and is attributed to the pinning of domain walls by the hole edges in the vicinity of which the demagnetizing field spatially varies. We find that the magnetization reversal process is dominated by the intrinsic unaxial anisotropy (2K(u)/M(s)approximate to 200 Oe) in spite of the shape anisotropy induced by the hole edges. The influence of the cross-junction on the competition between the intrinsic uniaxial anisotropy and the induced shape anisotropy is discussed using micromagnetic simulations.

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: coercivity,magnetic anisotropy,network structures
Institution: The University of York
Academic Units: The University of York > Electronics (York)
Depositing User: Repository Officer
Date Deposited: 18 Dec 2006
Last Modified: 24 Apr 2016 21:20
Published Version: http://dx.doi.org/10.1109/20.800562
Status: Published
Refereed: Yes
URI: http://eprints.whiterose.ac.uk/id/eprint/1851

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