Ferromagnetic resonance study of FeCoMoB microwires during devitrification process

Magnetic properties of FeCoMoB glass-coated microwires with high positive magnetostriction have been investigated during the process of devitrification in the temperature range: 0-600 C by ferromagnetic resonance (FMR) studies. The FeCoMoB microwire shows natural ferromagnetic resonance that reflect...

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Authors: Klein, Peter, Varga, Rastislav, Infante, Germán, Vázquez Villalabeitia, Manuel
Format: article
Publication Date:2012
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/46897
Online Access:http://hdl.handle.net/10261/46897
Access Level:Open access
Keyword:Magnetism
Microwires
Ferromagnetic resonance
Annealing
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spelling Ferromagnetic resonance study of FeCoMoB microwires during devitrification processKlein, PeterVarga, RastislavInfante, GermánVázquez Villalabeitia, ManuelMagnetismMicrowiresFerromagnetic resonanceAnnealingMagnetic properties of FeCoMoB glass-coated microwires with high positive magnetostriction have been investigated during the process of devitrification in the temperature range: 0-600 C by ferromagnetic resonance (FMR) studies. The FeCoMoB microwire shows natural ferromagnetic resonance that reflects a complex anisotropy distribution. FMR spectrum for as cast sample shows up to four resonance maxima when ranging frequency from 10 MHz up to 11.3 GHz. After annealing, the anisotropy distribution becomes more regular and the number of FMR peaks decreases. The anisotropy and stress amplitude has been estimated from the FMR spectra, showing a strong decrease with annealing temperature and being low and constant for the nanocrystalline state. In addition, Gilbert damping decreases with annealing temperature, too. The low Gilbert damping ( 0.01) for the nanocrystalline state makes the nanocrystalline FeCoMoB microwire an ideal material for applications in which fast magnetization processes are required.Peer reviewedAmerican Institute of Physics201220122012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/46897reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/468972026-05-22T06:33:51Z
dc.title.none.fl_str_mv Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
title Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
spellingShingle Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
Klein, Peter
Magnetism
Microwires
Ferromagnetic resonance
Annealing
title_short Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
title_full Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
title_fullStr Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
title_full_unstemmed Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
title_sort Ferromagnetic resonance study of FeCoMoB microwires during devitrification process
dc.creator.none.fl_str_mv Klein, Peter
Varga, Rastislav
Infante, Germán
Vázquez Villalabeitia, Manuel
author Klein, Peter
author_facet Klein, Peter
Varga, Rastislav
Infante, Germán
Vázquez Villalabeitia, Manuel
author_role author
author2 Varga, Rastislav
Infante, Germán
Vázquez Villalabeitia, Manuel
author2_role author
author
author
dc.subject.none.fl_str_mv Magnetism
Microwires
Ferromagnetic resonance
Annealing
topic Magnetism
Microwires
Ferromagnetic resonance
Annealing
description Magnetic properties of FeCoMoB glass-coated microwires with high positive magnetostriction have been investigated during the process of devitrification in the temperature range: 0-600 C by ferromagnetic resonance (FMR) studies. The FeCoMoB microwire shows natural ferromagnetic resonance that reflects a complex anisotropy distribution. FMR spectrum for as cast sample shows up to four resonance maxima when ranging frequency from 10 MHz up to 11.3 GHz. After annealing, the anisotropy distribution becomes more regular and the number of FMR peaks decreases. The anisotropy and stress amplitude has been estimated from the FMR spectra, showing a strong decrease with annealing temperature and being low and constant for the nanocrystalline state. In addition, Gilbert damping decreases with annealing temperature, too. The low Gilbert damping ( 0.01) for the nanocrystalline state makes the nanocrystalline FeCoMoB microwire an ideal material for applications in which fast magnetization processes are required.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/46897
url http://hdl.handle.net/10261/46897
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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