Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles

Autores
Dos Santos Mendez, Gonzalo Joaquín; Meyer, Robert; Aparicio, Romina Marcela; Tranchida, Julien; Bringa, Eduardo Marcial; Urbassek, Herbert M.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Magnetization of clusters is often simulated using atomistic spin dynamics for a fixed lattice. Coupled spin-lattice dynamics simulations of the magnetization of nanoparticles have, to date, neglected the change in the size of the atomic magnetic moments near surfaces. We show that the introduction of variable magnetic moments leads to a better description of experimental data for the magnetization of small Fe nanoparticles. To this end, we divide atoms into a surface-near shell and a core with bulk properties. It is demonstrated that both the magnitude of the shell magnetic moment and the exchange interactions need to be modified to obtain a fair representation of the experimental data. This allows for a reasonable description of the average magnetic moment vs cluster size, and also the cluster magnetization vs temperature.
Fil: Dos Santos Mendez, Gonzalo Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina
Fil: Meyer, Robert. University of Kaiserslautern; Alemania
Fil: Aparicio, Romina Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina
Fil: Tranchida, Julien. Sandia National Laboratories; Estados Unidos
Fil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina. Universidad Mayor; Chile
Fil: Urbassek, Herbert M.. University of Kaiserslautern; Alemania
Materia
MOLECULAR DYNAMICS
SPIN DYNAMICS
NANOPARTICLES
MAGNETIZATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/167756
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticlesDos Santos Mendez, Gonzalo JoaquínMeyer, RobertAparicio, Romina MarcelaTranchida, JulienBringa, Eduardo MarcialUrbassek, Herbert M.MOLECULAR DYNAMICSSPIN DYNAMICSNANOPARTICLESMAGNETIZATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Magnetization of clusters is often simulated using atomistic spin dynamics for a fixed lattice. Coupled spin-lattice dynamics simulations of the magnetization of nanoparticles have, to date, neglected the change in the size of the atomic magnetic moments near surfaces. We show that the introduction of variable magnetic moments leads to a better description of experimental data for the magnetization of small Fe nanoparticles. To this end, we divide atoms into a surface-near shell and a core with bulk properties. It is demonstrated that both the magnitude of the shell magnetic moment and the exchange interactions need to be modified to obtain a fair representation of the experimental data. This allows for a reasonable description of the average magnetic moment vs cluster size, and also the cluster magnetization vs temperature.Fil: Dos Santos Mendez, Gonzalo Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; ArgentinaFil: Meyer, Robert. University of Kaiserslautern; AlemaniaFil: Aparicio, Romina Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; ArgentinaFil: Tranchida, Julien. Sandia National Laboratories; Estados UnidosFil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina. Universidad Mayor; ChileFil: Urbassek, Herbert M.. University of Kaiserslautern; AlemaniaAmerican Institute of Physics2021-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/167756Dos Santos Mendez, Gonzalo Joaquín; Meyer, Robert; Aparicio, Romina Marcela; Tranchida, Julien; Bringa, Eduardo Marcial; et al.; Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles; American Institute of Physics; Applied Physics Letters; 119; 1; 7-2021; 1-120003-6951CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/5.0055606info:eu-repo/semantics/altIdentifier/doi/10.1063/5.0055606info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:30:49Zoai:ri.conicet.gov.ar:11336/167756instacron: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:34982025-09-17 11:30:49.583CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
title Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
spellingShingle Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
Dos Santos Mendez, Gonzalo Joaquín
MOLECULAR DYNAMICS
SPIN DYNAMICS
NANOPARTICLES
MAGNETIZATION
title_short Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
title_full Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
title_fullStr Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
title_full_unstemmed Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
title_sort Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles
dc.creator.none.fl_str_mv Dos Santos Mendez, Gonzalo Joaquín
Meyer, Robert
Aparicio, Romina Marcela
Tranchida, Julien
Bringa, Eduardo Marcial
Urbassek, Herbert M.
author Dos Santos Mendez, Gonzalo Joaquín
author_facet Dos Santos Mendez, Gonzalo Joaquín
Meyer, Robert
Aparicio, Romina Marcela
Tranchida, Julien
Bringa, Eduardo Marcial
Urbassek, Herbert M.
author_role author
author2 Meyer, Robert
Aparicio, Romina Marcela
Tranchida, Julien
Bringa, Eduardo Marcial
Urbassek, Herbert M.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv MOLECULAR DYNAMICS
SPIN DYNAMICS
NANOPARTICLES
MAGNETIZATION
topic MOLECULAR DYNAMICS
SPIN DYNAMICS
NANOPARTICLES
MAGNETIZATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Magnetization of clusters is often simulated using atomistic spin dynamics for a fixed lattice. Coupled spin-lattice dynamics simulations of the magnetization of nanoparticles have, to date, neglected the change in the size of the atomic magnetic moments near surfaces. We show that the introduction of variable magnetic moments leads to a better description of experimental data for the magnetization of small Fe nanoparticles. To this end, we divide atoms into a surface-near shell and a core with bulk properties. It is demonstrated that both the magnitude of the shell magnetic moment and the exchange interactions need to be modified to obtain a fair representation of the experimental data. This allows for a reasonable description of the average magnetic moment vs cluster size, and also the cluster magnetization vs temperature.
Fil: Dos Santos Mendez, Gonzalo Joaquín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina
Fil: Meyer, Robert. University of Kaiserslautern; Alemania
Fil: Aparicio, Romina Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina
Fil: Tranchida, Julien. Sandia National Laboratories; Estados Unidos
Fil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza. Facultad de Ingenieria; Argentina. Universidad Mayor; Chile
Fil: Urbassek, Herbert M.. University of Kaiserslautern; Alemania
description Magnetization of clusters is often simulated using atomistic spin dynamics for a fixed lattice. Coupled spin-lattice dynamics simulations of the magnetization of nanoparticles have, to date, neglected the change in the size of the atomic magnetic moments near surfaces. We show that the introduction of variable magnetic moments leads to a better description of experimental data for the magnetization of small Fe nanoparticles. To this end, we divide atoms into a surface-near shell and a core with bulk properties. It is demonstrated that both the magnitude of the shell magnetic moment and the exchange interactions need to be modified to obtain a fair representation of the experimental data. This allows for a reasonable description of the average magnetic moment vs cluster size, and also the cluster magnetization vs temperature.
publishDate 2021
dc.date.none.fl_str_mv 2021-07
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/11336/167756
Dos Santos Mendez, Gonzalo Joaquín; Meyer, Robert; Aparicio, Romina Marcela; Tranchida, Julien; Bringa, Eduardo Marcial; et al.; Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles; American Institute of Physics; Applied Physics Letters; 119; 1; 7-2021; 1-12
0003-6951
CONICET Digital
CONICET
url http://hdl.handle.net/11336/167756
identifier_str_mv Dos Santos Mendez, Gonzalo Joaquín; Meyer, Robert; Aparicio, Romina Marcela; Tranchida, Julien; Bringa, Eduardo Marcial; et al.; Spin-lattice dynamics of surface vs core magnetization in Fe nanoparticles; American Institute of Physics; Applied Physics Letters; 119; 1; 7-2021; 1-12
0003-6951
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/5.0055606
info:eu-repo/semantics/altIdentifier/doi/10.1063/5.0055606
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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: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
_version_ 1843606665748807680
score 13.001348

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