<div class="csl-bib-body">
<div class="csl-entry">Vinas, S. L., Salikhov, R., Bran, C., Palmero, E. M., Vazquez, M., Arvan, B., Yao, X., Toson, P., Fidler, J., Spasova, M., Wiedwald, U., & Farle, M. (2015). Magnetic hardening of Fe30Co70 nanowires. <i>Nanotechnology</i>, <i>26</i>(41), 415704. https://doi.org/10.1088/0957-4484/26/41/415704</div>
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dc.identifier.issn
0957-4484
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/151793
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dc.description.abstract
3d transition metal-based magnetic nanowires (NWs) are currently considered as potential candidates for alternative rare-earth-free alloys as novel permanent magnets. Here, we report on the magnetic hardening of Fe30Co70 nanowires in anodic aluminium oxide templates with diameters of 20 nm and 40 nm (length 6 μm and 7.5 μm, respectively) by means of magnetic pinning at the tips of the NWs. We observe that a 3-4 nm naturally formed ferrimagnetic FeCo oxide layer covering the tip of the FeCo NW increases the coercive field by 20%, indicating that domain wall nucleation starts at the tip of the magnetic NW. Ferromagnetic resonance (FMR) measurements were used to quantify the magnetic uniaxial anisotropy energy of the samples. Micromagnetic simulations support our experimental findings, showing that the increase of the coercive field can be achieved by controlling domain wall nucleation using magnetic materials with antiferromagnetic exchange coupling, i.e. antiferromagnets or ferrimagnets, as a capping layer at the nanowire tips
en
dc.publisher
IOP PUBLISHING LTD
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dc.relation.ispartof
Nanotechnology
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dc.subject
Electrical and Electronic Engineering
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dc.subject
Mechanical Engineering
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dc.subject
Mechanics of Materials
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dc.subject
General Materials Science
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dc.subject
Bioengineering
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dc.subject
General Chemistry
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dc.title
Magnetic hardening of Fe30Co70 nanowires
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dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
415704
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dc.type.category
Original Research Article
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tuw.container.volume
26
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tuw.container.issue
41
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
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tuw.researchTopic.id
C1
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tuw.researchTopic.id
M3
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tuw.researchTopic.name
Computational Materials Science
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tuw.researchTopic.name
Metallic Materials
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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dcterms.isPartOf.title
Nanotechnology
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tuw.publication.orgunit
E138-03 - Forschungsbereich Functional and Magnetic Materials