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Flux-closure domains in high aspect ratio electroless-deposited CoNiB nanotubes

Staňo, Michal and Schaefer, Sandra and Wartelle, Alexis and Rioult, Maxime and Belkhou, Rachid and Sala, Alessandro and Menteş, Tevfik Onur and Locatelli, Andrea and Cagnon, Laurent and Trapp, Beatrix and Bochmann, Sebastian and Martin, Sylvain and Gautier, Eric and Toussaint, Jean-Christophe and Ensinger, Wolfgang and Fruchart, Olivier (2018):
Flux-closure domains in high aspect ratio electroless-deposited CoNiB nanotubes.
5, In: SciPost Physics, (4), SciPost Foundation, pp. 038, DOI: 10.21468/SciPostPhys.5.4.038,
[Online-Edition: https://doi.org/10.21468/SciPostPhys.5.4.038],
[Article]

Abstract

We report the imaging of magnetic domains in ferromagnetic CoNiB nanotubes with very long aspect ratio, fabricated by electroless plating. While axial magnetization is expected for long tubes made of soft magnetic materials, we evidence series of azimuthal domains. We tentatively explain these by the interplay of anisotropic strain and/or grain size, with magneto-elasticity and/or anisotropic interfacial magnetic anisotropy. This material could be interesting for dense data storage, as well as curvature-induced magnetic phenomena such as the non-reciprocity of spin-wave propagation.

Item Type: Article
Erschienen: 2018
Creators: Staňo, Michal and Schaefer, Sandra and Wartelle, Alexis and Rioult, Maxime and Belkhou, Rachid and Sala, Alessandro and Menteş, Tevfik Onur and Locatelli, Andrea and Cagnon, Laurent and Trapp, Beatrix and Bochmann, Sebastian and Martin, Sylvain and Gautier, Eric and Toussaint, Jean-Christophe and Ensinger, Wolfgang and Fruchart, Olivier
Title: Flux-closure domains in high aspect ratio electroless-deposited CoNiB nanotubes
Language: English
Abstract:

We report the imaging of magnetic domains in ferromagnetic CoNiB nanotubes with very long aspect ratio, fabricated by electroless plating. While axial magnetization is expected for long tubes made of soft magnetic materials, we evidence series of azimuthal domains. We tentatively explain these by the interplay of anisotropic strain and/or grain size, with magneto-elasticity and/or anisotropic interfacial magnetic anisotropy. This material could be interesting for dense data storage, as well as curvature-induced magnetic phenomena such as the non-reciprocity of spin-wave propagation.

Journal or Publication Title: SciPost Physics
Volume: 5
Number: 4
Publisher: SciPost Foundation
Uncontrolled Keywords: CoNiB, Magnetic domains, Nanotubes, Spin waves/magnons
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
Date Deposited: 11 Dec 2018 12:22
DOI: 10.21468/SciPostPhys.5.4.038
Official URL: https://doi.org/10.21468/SciPostPhys.5.4.038
Funders: Funded by Agence Nationale de la Recherche [ANR], Funded by Hessisches Ministerium für Wissenschaft und Kunst / Hessian Ministry for Science and the Arts [HMWK]
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