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Transverse and vortex domain wall structure in magnetic nanowires with uniaxial in-plane anisotropy

Bryan, M.T., Bance, S., Dean, J., Schrefl, T. and Allwood, D.A. (2012) Transverse and vortex domain wall structure in magnetic nanowires with uniaxial in-plane anisotropy. Journal of Physics -Condensed Matter, 24 (2). Art no. 024205. ISSN 0953-8984

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Abstract

Micromagnetic and analytical models are used to investigate how in-plane uniaxial anisotropy affects transverse and vortex domain walls in nanowires where shape anisotropy dominates. The effect of the uniaxial anisotropy can be interpreted as a modification of the effective wire dimensions. When the anisotropy axis is aligned with the wire axis (theta(a) = 0), the wall width is narrower than when no anisotropy is present. Conversely, the wall width increases when the anisotropy axis is perpendicular to the wire axis (theta(a) = pi/2). The anisotropy also affects the nanowire dimensions at which transverse walls become unstable. This phase boundary shifts to larger widths or thicknesses when theta(a) = 0, but smaller widths or thicknesses when theta(a) = pi/2.

Item Type: Article
Copyright, Publisher and Additional Information: © 2011 Institute of Physics. This is an author produced version of a paper subsequently published in Journal of Physics. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Dynamics; Strips; Elements; Motion; Wires; Thin
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User: Miss Anthea Tucker
Date Deposited: 27 Jan 2012 13:37
Last Modified: 08 Feb 2013 17:36
Published Version: http://dx.doi.org/10.1088/0953-8984/24/2/024205
Status: Published
Publisher: Institute of Physics
Refereed: Yes
Identification Number: 10.1088/0953-8984/24/2/024205
URI: http://eprints.whiterose.ac.uk/id/eprint/43681

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