Beam‐Induced Fe Nanopillars as Tunable Domain‐Wall Pinning Sites. (12th February 2014)

• Record Type: Journal Article
• Authors: Franken, Jeroen H.; van der Heijden, Mark A. J.; Ellis, Tim H.; Lavrijsen, Reinoud; Daniels, Carsten; McGrouther, Damien; Swagten, Henk J. M.; Koopmans, Bert
• Is Part Of: Advanced functional materials. Volume 24:Number 23(2014)
• Page Start: 3508
• Page End: 3514
• Publication Date: 2014-02-12
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201303540
• Languages: English
• ISSNs: 1616-301X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>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.</p> </abstract>