Beam-induced Fe nanopillars as tunable domain-wall pinning sites

Franken, J. H., van der Heijden, M. A.J., Ellis, T. H., Lavrijsen, R., Daniels, C., McGrouther, D. , Swagten, H. J.M. and Koopmans, B. (2014) Beam-induced Fe nanopillars as tunable domain-wall pinning sites. Advanced Functional Materials, 24(23), pp. 3508-3514. (doi: 10.1002/adfm.201303540)

Abstract

Focused-electron-beam-induced deposition (FEBID) is employed to create freestanding magnetic nanostructures. By growing Fe nanopillars on top of a perpendicular magnetic domain wall (DW) conduit, pinning of the DWs is observed due to the stray fields emanating from the nanopillar. Furthermore, a different DW pinning behavior is observed between the up and down magnetic states of the pillar, allowing to deduce the switching fields of the pillar in a novel way. The implications of these results are two-fold: not only can 3-dimensional nano-objects be used to control DW motion in applications, it is also proposed that DW motion is a unique tool to probe the magnetic properties of nano-objects.

• Item Type: Articles
• Additional Information: This is the pre-peer reviewed version of the following article: Franken, Jeroen H., van der Heijden, Mark A. J., Ellis, Tim H., Lavrijsen, Reinoud , Daniels , Carsten, McGrouther, Damien, Swagten , Henk J. M., and Koopmans, Bert (2014) Beam-induced Fe nanopillars as tunable domain-wall pinning sites. Advanced Functional Materials, 24 (23). pp. 3508-3514. ISSN 1616-301X, which has been published in final form at http://dx.doi.org/10.1002/adfm.201303540
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: McGrouther, Dr Damien
• Authors: Franken, J. H., van der Heijden, M. A.J., Ellis, T. H., Lavrijsen, R., Daniels, C., McGrouther, D., Swagten, H. J.M., and Koopmans, B.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy > Kelvin Nanocharacterisation Centre
• Research Group: MCMP
• Journal Name: Advanced Functional Materials
• Publisher: Wiley
• ISSN: 1616-301X
• ISSN (Online): 1616-3028
• Copyright Holders: Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
• First Published: First published in Advanced Functional Materials 24(23):3508-3514
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher