Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating

We report on the structural and magnetic properties of crystalline bi-phase Co nanowires, electrodeposited into the pores of anodized alumina membranes, as a function of their length. Co nanowires present two different coexistent crystalline structures (fcc and hcp) that can be controlled by the tim...

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Autores: Pirota, K.R., Béron, F., Zanchet, D., Rocha, T.C.R., Navas, David, Torrejón, J., Vázquez Villalabeitia, Manuel, Knobel, M.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/377713
Acceso en línea:http://hdl.handle.net/10261/377713
https://www.scopus.com/inward/record.uri?eid=2-s2.0-79955709830&doi=10.1063%2f1.3553865&partnerID=40&md5=fdae1e492fd90aa278105433d266d5d2
Access Level:acceso abierto
Palabra clave:Magnetic anisotropy
Magnetic fields
Crystal structure
Crystalline solids
Electrodeposition
Magnetic hysteresis
Magnetic materials
Thin film deposition
X-ray diffraction
Nanowires
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spelling Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplatingPirota, K.R.Béron, F.Zanchet, D.Rocha, T.C.R.Navas, DavidTorrejón, J.Vázquez Villalabeitia, ManuelKnobel, M.Magnetic anisotropyMagnetic fieldsCrystal structureCrystalline solidsElectrodepositionMagnetic hysteresisMagnetic materialsThin film depositionX-ray diffractionNanowiresWe report on the structural and magnetic properties of crystalline bi-phase Co nanowires, electrodeposited into the pores of anodized alumina membranes, as a function of their length. Co nanowires present two different coexistent crystalline structures (fcc and hcp) that can be controlled by the time of pulsed electrodeposition. The fcc crystalline phase grows at the early stage and is present at the bottom of all the nanowires, strongly influencing their magnetic behavior. Both structural and magnetic characterizations indicate that the length of the fcc phase is constant at around 260-270 nm. X-ray diffraction measurements revealed a strong preferential orientation (texture) in the (1 0-1 0) direction for the hcp phase, which increases the nanowire length as well as crystalline grain size, degree of orientation, and volume fraction of oriented material. The first-order reversal curve (FORC) method was used to infer both qualitatively and quantitatively the complex magnetization reversal of the nanowires. Under the application of a magnetic field parallel to the wires, the magnetization reversal of each region is clearly distinguishable; the fcc phase creates a high coercive contribution without an interaction field, while the hcp phase presents a smaller coercivity and undergoes a strong antiparallel interaction field from neighboring wires. © 2011 American Institute of Physics.FAPESP, CnPQPeer reviewedAIP PublishingFundações de Amparo à Pesquisa (Brasil)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/377713https://www.scopus.com/inward/record.uri?eid=2-s2.0-79955709830&doi=10.1063%2f1.3553865&partnerID=40&md5=fdae1e492fd90aa278105433d266d5d2reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésJournal of Applied Physicshttps://doi.org/10.1063/1.3553865Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3777132026-05-22T06:33:51Z
dc.title.none.fl_str_mv Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
title Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
spellingShingle Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
Pirota, K.R.
Magnetic anisotropy
Magnetic fields
Crystal structure
Crystalline solids
Electrodeposition
Magnetic hysteresis
Magnetic materials
Thin film deposition
X-ray diffraction
Nanowires
title_short Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
title_full Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
title_fullStr Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
title_full_unstemmed Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
title_sort Magnetic and structural properties of fcc/hcp bi-crystalline multilayer Co nanowire arrays prepared by controlled electroplating
dc.creator.none.fl_str_mv Pirota, K.R.
Béron, F.
Zanchet, D.
Rocha, T.C.R.
Navas, David
Torrejón, J.
Vázquez Villalabeitia, Manuel
Knobel, M.
author Pirota, K.R.
author_facet Pirota, K.R.
Béron, F.
Zanchet, D.
Rocha, T.C.R.
Navas, David
Torrejón, J.
Vázquez Villalabeitia, Manuel
Knobel, M.
author_role author
author2 Béron, F.
Zanchet, D.
Rocha, T.C.R.
Navas, David
Torrejón, J.
Vázquez Villalabeitia, Manuel
Knobel, M.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Fundações de Amparo à Pesquisa (Brasil)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Magnetic anisotropy
Magnetic fields
Crystal structure
Crystalline solids
Electrodeposition
Magnetic hysteresis
Magnetic materials
Thin film deposition
X-ray diffraction
Nanowires
topic Magnetic anisotropy
Magnetic fields
Crystal structure
Crystalline solids
Electrodeposition
Magnetic hysteresis
Magnetic materials
Thin film deposition
X-ray diffraction
Nanowires
description We report on the structural and magnetic properties of crystalline bi-phase Co nanowires, electrodeposited into the pores of anodized alumina membranes, as a function of their length. Co nanowires present two different coexistent crystalline structures (fcc and hcp) that can be controlled by the time of pulsed electrodeposition. The fcc crystalline phase grows at the early stage and is present at the bottom of all the nanowires, strongly influencing their magnetic behavior. Both structural and magnetic characterizations indicate that the length of the fcc phase is constant at around 260-270 nm. X-ray diffraction measurements revealed a strong preferential orientation (texture) in the (1 0-1 0) direction for the hcp phase, which increases the nanowire length as well as crystalline grain size, degree of orientation, and volume fraction of oriented material. The first-order reversal curve (FORC) method was used to infer both qualitatively and quantitatively the complex magnetization reversal of the nanowires. Under the application of a magnetic field parallel to the wires, the magnetization reversal of each region is clearly distinguishable; the fcc phase creates a high coercive contribution without an interaction field, while the hcp phase presents a smaller coercivity and undergoes a strong antiparallel interaction field from neighboring wires. © 2011 American Institute of Physics.
publishDate 2011
dc.date.none.fl_str_mv 2011
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/377713
https://www.scopus.com/inward/record.uri?eid=2-s2.0-79955709830&doi=10.1063%2f1.3553865&partnerID=40&md5=fdae1e492fd90aa278105433d266d5d2
url http://hdl.handle.net/10261/377713
https://www.scopus.com/inward/record.uri?eid=2-s2.0-79955709830&doi=10.1063%2f1.3553865&partnerID=40&md5=fdae1e492fd90aa278105433d266d5d2
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Applied Physics
https://doi.org/10.1063/1.3553865
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv AIP Publishing
publisher.none.fl_str_mv AIP Publishing
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 15.811543

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