Time-dependent magnetization in co-precipitated cobalt ferrite

A study of the magnetic aftereffect in co-precipitated cobalt ferrite is presented.Measurements of the magnetic viscosity S were performed at room temperature along the demagnetization curve for different applied fields Hap over a wide range of fields (0 kOe<Hap<- 7 kOe).The interrelation func...

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Detalles Bibliográficos
Autor: JOSE ANDRES MATUTES AQUINO
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2002
País:México
Institución:Centro de Investigación en Materiales Avanzados
Repositorio:Fuente de Objetos Científicos Open Access del CIMAV
Idioma:inglés
OAI Identifier:oai:cimav.repositorioinstitucional.mx:1004/1006
Acceso en línea:http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1006
Access Level:acceso abierto
Palabra clave:info:eu-repo/classification/Magnetic aftereffect/Magnetic viscosity
info:eu-repo/classification/Reversal magnetization/Cobalt ferrite
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
id MX_465dca5ff8d1e83d16d9a679c6fb89ff
oai_identifier_str oai:cimav.repositorioinstitucional.mx:1004/1006
network_acronym_str MX
network_name_str México
repository_id_str
spelling Time-dependent magnetization in co-precipitated cobalt ferriteJOSE ANDRES MATUTES AQUINOinfo:eu-repo/classification/Magnetic aftereffect/Magnetic viscosityinfo:eu-repo/classification/Reversal magnetization/Cobalt ferriteinfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/22info:eu-repo/classification/cti/2299info:eu-repo/classification/cti/229999info:eu-repo/classification/cti/229999A study of the magnetic aftereffect in co-precipitated cobalt ferrite is presented.Measurements of the magnetic viscosity S were performed at room temperature along the demagnetization curve for different applied fields Hap over a wide range of fields (0 kOe<Hap<- 7 kOe).The interrelation function n ¼ ðMrev/ðMirr)Hi between the DCD reversible Mrev and irreversible Mirr magnetization components was determined as well. The experimental results for Sn (Hi) where Hi is the internal field, showed a broad distribution with a maximum at Hi = 2.7 kOe. However, the irreversible susceptibility Xirr displays a maximum at Hc = 0.75 kOe, the coercivity of the material. The experimental behavior of n and the non-proportionality between Sn and Xiirr suggest that the magnetic viscosity in this material is principally supplied by events of nucleation of inverse domains and the depinning of domain walls. When the main mechanism of reversal magnetization changes to rotation of magnetic moments for all the grains, the magnetic viscosity decreases.2002info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://cimav.repositorioinstitucional.mx/jspui/handle/1004/1006reponame:Fuente de Objetos Científicos Open Access del CIMAVinstname:Centro de Investigación en Materiales Avanzadosinstacron:CIMAVenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/about/cc0/oai:cimav.repositorioinstitucional.mx:1004/10062024-08-28T03:19:00Z
dc.title.none.fl_str_mv Time-dependent magnetization in co-precipitated cobalt ferrite
title Time-dependent magnetization in co-precipitated cobalt ferrite
spellingShingle Time-dependent magnetization in co-precipitated cobalt ferrite
JOSE ANDRES MATUTES AQUINO
info:eu-repo/classification/Magnetic aftereffect/Magnetic viscosity
info:eu-repo/classification/Reversal magnetization/Cobalt ferrite
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
title_short Time-dependent magnetization in co-precipitated cobalt ferrite
title_full Time-dependent magnetization in co-precipitated cobalt ferrite
title_fullStr Time-dependent magnetization in co-precipitated cobalt ferrite
title_full_unstemmed Time-dependent magnetization in co-precipitated cobalt ferrite
title_sort Time-dependent magnetization in co-precipitated cobalt ferrite
dc.creator.none.fl_str_mv JOSE ANDRES MATUTES AQUINO
author JOSE ANDRES MATUTES AQUINO
author_facet JOSE ANDRES MATUTES AQUINO
author_role author
dc.subject.none.fl_str_mv info:eu-repo/classification/Magnetic aftereffect/Magnetic viscosity
info:eu-repo/classification/Reversal magnetization/Cobalt ferrite
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
topic info:eu-repo/classification/Magnetic aftereffect/Magnetic viscosity
info:eu-repo/classification/Reversal magnetization/Cobalt ferrite
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
description A study of the magnetic aftereffect in co-precipitated cobalt ferrite is presented.Measurements of the magnetic viscosity S were performed at room temperature along the demagnetization curve for different applied fields Hap over a wide range of fields (0 kOe<Hap<- 7 kOe).The interrelation function n ¼ ðMrev/ðMirr)Hi between the DCD reversible Mrev and irreversible Mirr magnetization components was determined as well. The experimental results for Sn (Hi) where Hi is the internal field, showed a broad distribution with a maximum at Hi = 2.7 kOe. However, the irreversible susceptibility Xirr displays a maximum at Hc = 0.75 kOe, the coercivity of the material. The experimental behavior of n and the non-proportionality between Sn and Xiirr suggest that the magnetic viscosity in this material is principally supplied by events of nucleation of inverse domains and the depinning of domain walls. When the main mechanism of reversal magnetization changes to rotation of magnetic moments for all the grains, the magnetic viscosity decreases.
publishDate 2002
dc.date.none.fl_str_mv 2002
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1006
url http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1006
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/about/cc0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/about/cc0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Fuente de Objetos Científicos Open Access del CIMAV
instname:Centro de Investigación en Materiales Avanzados
instacron:CIMAV
instname_str Centro de Investigación en Materiales Avanzados
instacron_str CIMAV
institution CIMAV
reponame_str Fuente de Objetos Científicos Open Access del CIMAV
collection Fuente de Objetos Científicos Open Access del CIMAV
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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