Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly

Autores
Bruvera, Ignacio Javier; Mendoza Zélis, Pedro; Calatayud, M. Pilar; Goya, Gerardo Fabián; Sánchez, Francisco Homero
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A numerically solved two-level Stoner-Wohlfarth model with thermal agitation is used to simulate Zero Field Cooling (ZFC)–Field Cooling (FC) curves of monosize and polysize samples and to determine the best method for obtaining a representative blocking temperature TB value of polysize samples. The results confirm a technique based on the T derivative of the difference between ZFC and FC curves proposed by Micha et al. (the good) and demonstrate its relation with two alternative methods: the ZFC maximum (the bad) and the inflection point (the ugly). The derivative method is then applied to experimental data, obtaining the TB distribution of a polysize Fe3O4 nanoparticle sample suspended in hexane with an excellent agreement with TEM characterization.
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
Stoner-Wohlfarth model
Magnetic nanoparticles
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/124066
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/124066
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the uglyBruvera, Ignacio JavierMendoza Zélis, PedroCalatayud, M. PilarGoya, Gerardo FabiánSánchez, Francisco HomeroCiencias ExactasFísicaStoner-Wohlfarth modelMagnetic nanoparticlesA numerically solved two-level Stoner-Wohlfarth model with thermal agitation is used to simulate Zero Field Cooling (ZFC)–Field Cooling (FC) curves of monosize and polysize samples and to determine the best method for obtaining a representative blocking temperature T<sub>B</sub> value of polysize samples. The results confirm a technique based on the T derivative of the difference between ZFC and FC curves proposed by Micha et al. (the good) and demonstrate its relation with two alternative methods: the ZFC maximum (the bad) and the inflection point (the ugly). The derivative method is then applied to experimental data, obtaining the T<sub>B</sub> distribution of a polysize Fe<sub>3</sub>O<sub>4</sub> nanoparticle sample suspended in hexane with an excellent agreement with TEM characterization.Instituto de Física La Plata2015-11-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/124066enginfo:eu-repo/semantics/altIdentifier/issn/0021-8979info:eu-repo/semantics/altIdentifier/issn/1089-7550info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4935484info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:29:28Zoai:sedici.unlp.edu.ar:10915/124066Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:29:28.827SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
title Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
spellingShingle Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
Bruvera, Ignacio Javier
Ciencias Exactas
Física
Stoner-Wohlfarth model
Magnetic nanoparticles
title_short Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
title_full Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
title_fullStr Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
title_full_unstemmed Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
title_sort Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
dc.creator.none.fl_str_mv Bruvera, Ignacio Javier
Mendoza Zélis, Pedro
Calatayud, M. Pilar
Goya, Gerardo Fabián
Sánchez, Francisco Homero
author Bruvera, Ignacio Javier
author_facet Bruvera, Ignacio Javier
Mendoza Zélis, Pedro
Calatayud, M. Pilar
Goya, Gerardo Fabián
Sánchez, Francisco Homero
author_role author
author2 Mendoza Zélis, Pedro
Calatayud, M. Pilar
Goya, Gerardo Fabián
Sánchez, Francisco Homero
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Stoner-Wohlfarth model
Magnetic nanoparticles
topic Ciencias Exactas
Física
Stoner-Wohlfarth model
Magnetic nanoparticles
dc.description.none.fl_txt_mv A numerically solved two-level Stoner-Wohlfarth model with thermal agitation is used to simulate Zero Field Cooling (ZFC)–Field Cooling (FC) curves of monosize and polysize samples and to determine the best method for obtaining a representative blocking temperature T<sub>B</sub> value of polysize samples. The results confirm a technique based on the T derivative of the difference between ZFC and FC curves proposed by Micha et al. (the good) and demonstrate its relation with two alternative methods: the ZFC maximum (the bad) and the inflection point (the ugly). The derivative method is then applied to experimental data, obtaining the T<sub>B</sub> distribution of a polysize Fe<sub>3</sub>O<sub>4</sub> nanoparticle sample suspended in hexane with an excellent agreement with TEM characterization.
Instituto de Física La Plata
description A numerically solved two-level Stoner-Wohlfarth model with thermal agitation is used to simulate Zero Field Cooling (ZFC)–Field Cooling (FC) curves of monosize and polysize samples and to determine the best method for obtaining a representative blocking temperature T<sub>B</sub> value of polysize samples. The results confirm a technique based on the T derivative of the difference between ZFC and FC curves proposed by Micha et al. (the good) and demonstrate its relation with two alternative methods: the ZFC maximum (the bad) and the inflection point (the ugly). The derivative method is then applied to experimental data, obtaining the T<sub>B</sub> distribution of a polysize Fe<sub>3</sub>O<sub>4</sub> nanoparticle sample suspended in hexane with an excellent agreement with TEM characterization.
publishDate 2015
dc.date.none.fl_str_mv 2015-11-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/124066
url http://sedici.unlp.edu.ar/handle/10915/124066
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0021-8979
info:eu-repo/semantics/altIdentifier/issn/1089-7550
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4935484
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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