Article (Scientific journals)
Magnetic neutron scattering by magnetic vortices in thin submicron-sized soft ferromagnetic cylinders
Metlov, K.L.; Michels, Andreas
2016In Scientific Reports, 6, p. 25055
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Keywords :
neutron scattering; micromagnetics; vortex
Abstract :
[en] Using analytical expressions for the magnetization textures of thin submicron-sized magnetic cylinders in vortex state, we derive closed-form algebraic expressions for the ensuing small-angle neutron scattering (SANS) cross sections. Specifically, for the perpendicular and parallel scattering geometries, we have computed the cross sections for the case of small vortex-center displacements without formation of magnetic charges on the side faces of the cylinder. The results represent a significant qualitative and quantitative step forward in SANS-data analysis on isolated magnetic nanoparticle systems, which are commonly assumed to be homogeneously or stepwise-homogeneously magnetized. We suggest a way to extract the fine details of the magnetic vortex structure during the magnetization process from the SANS measurements in order to help resolving the long-standing question of the magnetic vortex displacement mode.
Disciplines :
Physics
Author, co-author :
Metlov, K.L.
Michels, Andreas  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
yes
Language :
English
Title :
Magnetic neutron scattering by magnetic vortices in thin submicron-sized soft ferromagnetic cylinders
Publication date :
2016
Journal title :
Scientific Reports
ISSN :
2045-2322
Publisher :
Nature Publishing Group, London, United Kingdom
Volume :
6
Pages :
25055
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 28 April 2016

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