Dynamic response of magnetic nanoparticles arranged in a tubular shape

Autores
Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Ramos, Carlos Alberto; Leyva de Guglielmino, Ana Gabriela; Butera, Alejandro Ricardo
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have developed a model that describes the ferromagnetic resonance spectra recently observed in nanotubes formed by assembled La0.67Sr0.33MnO3 manganite nanoparticles. The resonance line shape in these tubes resembles that of a system of randomly oriented flat particles instead of what is usually seen in elongated samples. In order to explain the experimental data we have assumed that each individual grain (or small group of grains) has an easy plane effective anisotropy which could be partially aligned in a cylindrical symmetry. The magnetization of each grain is also distributed around a mean value, and hence the magnitude of the anisotropy varies from grain to grain. Within this framework we have been able to fit reasonably well the resonance field and the overall line shape of nanotubes that were deposited on a glass substrate and were aligned in a magnetic field. From the simulations we have deduced an average effective magnetization M = 180 emu / cm3 with a distribution width of 140 emu / cm3. This value of magnetization is smaller than that of bulk LaSr manganites at room temperature, probably due to the granular nature of the tubes.
Fil: Curiale, Carlos Javier. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Ramos, Carlos Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Leyva de Guglielmino, Ana Gabriela. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Butera, Alejandro Ricardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Materia
Ferromagnetic Resonance
Manganites
Nanomagnetism
Nanotubes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68569
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68569
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dynamic response of magnetic nanoparticles arranged in a tubular shapeCuriale, Carlos JavierSanchez, Rodolfo DanielRamos, Carlos AlbertoLeyva de Guglielmino, Ana GabrielaButera, Alejandro RicardoFerromagnetic ResonanceManganitesNanomagnetismNanotubeshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have developed a model that describes the ferromagnetic resonance spectra recently observed in nanotubes formed by assembled La0.67Sr0.33MnO3 manganite nanoparticles. The resonance line shape in these tubes resembles that of a system of randomly oriented flat particles instead of what is usually seen in elongated samples. In order to explain the experimental data we have assumed that each individual grain (or small group of grains) has an easy plane effective anisotropy which could be partially aligned in a cylindrical symmetry. The magnetization of each grain is also distributed around a mean value, and hence the magnitude of the anisotropy varies from grain to grain. Within this framework we have been able to fit reasonably well the resonance field and the overall line shape of nanotubes that were deposited on a glass substrate and were aligned in a magnetic field. From the simulations we have deduced an average effective magnetization M = 180 emu / cm3 with a distribution width of 140 emu / cm3. This value of magnetization is smaller than that of bulk LaSr manganites at room temperature, probably due to the granular nature of the tubes.Fil: Curiale, Carlos Javier. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Ramos, Carlos Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Leyva de Guglielmino, Ana Gabriela. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Butera, Alejandro Ricardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaElsevier Science2008-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68569Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Ramos, Carlos Alberto; Leyva de Guglielmino, Ana Gabriela; Butera, Alejandro Ricardo; Dynamic response of magnetic nanoparticles arranged in a tubular shape; Elsevier Science; Journal of Magnetism and Magnetic Materials; 320; 14; 7-2008; 218-2210304-8853CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmmm.2008.02.152info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304885308001443#!info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:57Zoai:ri.conicet.gov.ar:11336/68569instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:09:57.373CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dynamic response of magnetic nanoparticles arranged in a tubular shape
title Dynamic response of magnetic nanoparticles arranged in a tubular shape
spellingShingle Dynamic response of magnetic nanoparticles arranged in a tubular shape
Curiale, Carlos Javier
Ferromagnetic Resonance
Manganites
Nanomagnetism
Nanotubes
title_short Dynamic response of magnetic nanoparticles arranged in a tubular shape
title_full Dynamic response of magnetic nanoparticles arranged in a tubular shape
title_fullStr Dynamic response of magnetic nanoparticles arranged in a tubular shape
title_full_unstemmed Dynamic response of magnetic nanoparticles arranged in a tubular shape
title_sort Dynamic response of magnetic nanoparticles arranged in a tubular shape
dc.creator.none.fl_str_mv Curiale, Carlos Javier
Sanchez, Rodolfo Daniel
Ramos, Carlos Alberto
Leyva de Guglielmino, Ana Gabriela
Butera, Alejandro Ricardo
author Curiale, Carlos Javier
author_facet Curiale, Carlos Javier
Sanchez, Rodolfo Daniel
Ramos, Carlos Alberto
Leyva de Guglielmino, Ana Gabriela
Butera, Alejandro Ricardo
author_role author
author2 Sanchez, Rodolfo Daniel
Ramos, Carlos Alberto
Leyva de Guglielmino, Ana Gabriela
Butera, Alejandro Ricardo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ferromagnetic Resonance
Manganites
Nanomagnetism
Nanotubes
topic Ferromagnetic Resonance
Manganites
Nanomagnetism
Nanotubes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have developed a model that describes the ferromagnetic resonance spectra recently observed in nanotubes formed by assembled La0.67Sr0.33MnO3 manganite nanoparticles. The resonance line shape in these tubes resembles that of a system of randomly oriented flat particles instead of what is usually seen in elongated samples. In order to explain the experimental data we have assumed that each individual grain (or small group of grains) has an easy plane effective anisotropy which could be partially aligned in a cylindrical symmetry. The magnetization of each grain is also distributed around a mean value, and hence the magnitude of the anisotropy varies from grain to grain. Within this framework we have been able to fit reasonably well the resonance field and the overall line shape of nanotubes that were deposited on a glass substrate and were aligned in a magnetic field. From the simulations we have deduced an average effective magnetization M = 180 emu / cm3 with a distribution width of 140 emu / cm3. This value of magnetization is smaller than that of bulk LaSr manganites at room temperature, probably due to the granular nature of the tubes.
Fil: Curiale, Carlos Javier. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Ramos, Carlos Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Leyva de Guglielmino, Ana Gabriela. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Butera, Alejandro Ricardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
description We have developed a model that describes the ferromagnetic resonance spectra recently observed in nanotubes formed by assembled La0.67Sr0.33MnO3 manganite nanoparticles. The resonance line shape in these tubes resembles that of a system of randomly oriented flat particles instead of what is usually seen in elongated samples. In order to explain the experimental data we have assumed that each individual grain (or small group of grains) has an easy plane effective anisotropy which could be partially aligned in a cylindrical symmetry. The magnetization of each grain is also distributed around a mean value, and hence the magnitude of the anisotropy varies from grain to grain. Within this framework we have been able to fit reasonably well the resonance field and the overall line shape of nanotubes that were deposited on a glass substrate and were aligned in a magnetic field. From the simulations we have deduced an average effective magnetization M = 180 emu / cm3 with a distribution width of 140 emu / cm3. This value of magnetization is smaller than that of bulk LaSr manganites at room temperature, probably due to the granular nature of the tubes.
publishDate 2008
dc.date.none.fl_str_mv 2008-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/68569
Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Ramos, Carlos Alberto; Leyva de Guglielmino, Ana Gabriela; Butera, Alejandro Ricardo; Dynamic response of magnetic nanoparticles arranged in a tubular shape; Elsevier Science; Journal of Magnetism and Magnetic Materials; 320; 14; 7-2008; 218-221
0304-8853
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68569
identifier_str_mv Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Ramos, Carlos Alberto; Leyva de Guglielmino, Ana Gabriela; Butera, Alejandro Ricardo; Dynamic response of magnetic nanoparticles arranged in a tubular shape; Elsevier Science; Journal of Magnetism and Magnetic Materials; 320; 14; 7-2008; 218-221
0304-8853
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmmm.2008.02.152
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304885308001443#!
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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