Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange

Descripción del Articulo

This research was funded by Fondo Nacional de Desarrollo Cient?fico, Tecnol?gico y de Innovaci?n Tecnol?gica (FONDECYT-CONCYTEC), Project number 177-2020-FONDECYT.
Detalles Bibliográficos
Autores: Ramos-Guivar J.A., Tamanaha-Vegas C.A., Litterst F.J., Passamani E.C.
Formato: artículo
Fecha de Publicación:2021
Institución:Consejo Nacional de Ciencia Tecnología e Innovación
Repositorio:CONCYTEC-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.concytec.gob.pe:20.500.12390/3024
Enlace del recurso:https://hdl.handle.net/20.500.12390/3024
https://doi.org/10.3390/nano11061381
Nivel de acceso:acceso abierto
Materia:Monte Carlo simulation
Atomistic simulation
Core–shell bi-magnetic nanoparticles
Core–shell bi-magnetic nanoparticles
Interfacial exchange
https://purl.org/pe-repo/ocde/ford#2.10.01
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network_acronym_str CONC
network_name_str CONCYTEC-Institucional
repository_id_str 4689
dc.title.none.fl_str_mv Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
title Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
spellingShingle Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
Ramos-Guivar J.A.
Monte Carlo simulation
Atomistic simulation
Atomistic simulation
Core–shell bi-magnetic nanoparticles
Core–shell bi-magnetic nanoparticles
Interfacial exchange
Interfacial exchange
https://purl.org/pe-repo/ocde/ford#2.10.01
title_short Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
title_full Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
title_fullStr Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
title_full_unstemmed Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
title_sort Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
author Ramos-Guivar J.A.
author_facet Ramos-Guivar J.A.
Tamanaha-Vegas C.A.
Litterst F.J.
Passamani E.C.
author_role author
author2 Tamanaha-Vegas C.A.
Litterst F.J.
Passamani E.C.
author2_role author
author
author
dc.contributor.author.fl_str_mv Ramos-Guivar J.A.
Tamanaha-Vegas C.A.
Litterst F.J.
Passamani E.C.
dc.subject.none.fl_str_mv Monte Carlo simulation
topic Monte Carlo simulation
Atomistic simulation
Atomistic simulation
Core–shell bi-magnetic nanoparticles
Core–shell bi-magnetic nanoparticles
Interfacial exchange
Interfacial exchange
https://purl.org/pe-repo/ocde/ford#2.10.01
dc.subject.es_PE.fl_str_mv Atomistic simulation
Atomistic simulation
Core–shell bi-magnetic nanoparticles
Core–shell bi-magnetic nanoparticles
Interfacial exchange
Interfacial exchange
dc.subject.ocde.none.fl_str_mv https://purl.org/pe-repo/ocde/ford#2.10.01
description This research was funded by Fondo Nacional de Desarrollo Cient?fico, Tecnol?gico y de Innovaci?n Tecnol?gica (FONDECYT-CONCYTEC), Project number 177-2020-FONDECYT.
publishDate 2021
dc.date.accessioned.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.available.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.issued.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12390/3024
dc.identifier.doi.none.fl_str_mv https://doi.org/10.3390/nano11061381
dc.identifier.scopus.none.fl_str_mv 2-s2.0-85106211003
url https://hdl.handle.net/20.500.12390/3024
https://doi.org/10.3390/nano11061381
identifier_str_mv 2-s2.0-85106211003
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.ispartof.none.fl_str_mv Nanomaterials
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.none.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:CONCYTEC-Institucional
instname:Consejo Nacional de Ciencia Tecnología e Innovación
instacron:CONCYTEC
instname_str Consejo Nacional de Ciencia Tecnología e Innovación
instacron_str CONCYTEC
institution CONCYTEC
reponame_str CONCYTEC-Institucional
collection CONCYTEC-Institucional
repository.name.fl_str_mv Repositorio Institucional CONCYTEC
repository.mail.fl_str_mv repositorio@concytec.gob.pe
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spelling Publicationrp05965600rp08656600rp02031600rp01941600Ramos-Guivar J.A.Tamanaha-Vegas C.A.Litterst F.J.Passamani E.C.2024-05-30T23:13:38Z2024-05-30T23:13:38Z2021https://hdl.handle.net/20.500.12390/3024https://doi.org/10.3390/nano110613812-s2.0-85106211003This research was funded by Fondo Nacional de Desarrollo Cient?fico, Tecnol?gico y de Innovaci?n Tecnol?gica (FONDECYT-CONCYTEC), Project number 177-2020-FONDECYT.Magnetic properties of ferromagnetic nanostructures were studied by atomistic simulations following Monte Carlo and Landau–Lifshitz–Gilbert approaches. First, we investigated the influence of particle size and shape on the temperature dependence of magnetization for single cobalt and gadolinium nanoparticles and also in bi-magnetic Co@Gd core–shell nanoparticles with different sizes. The Landau–Lifshitz–Gilbert approach was subsequently applied for inspecting the magnetic hysteresis behavior of 2 and 4 nm Co@Gd core–shell nanoparticles with negative, positive, and zero values of interfacial magnetic exchange. We were able to demonstrate the influence of finite-size effect on the dependence of the Curie temperature of Co and Gd nanoparticles. In the Co@Gd core–shell framework, it was possible to handle the critical temperature of the hybrid system by adjusting the Co core size. In addition, we found an improvement in the coercive field values for a negative interfacial exchange energy and for a different core size, suggesting an exchange spring behavior, while positive and zero values of interfacial exchange constant showed no strong influence on the hysteresis behavior. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - ConcytecengMDPI AGNanomaterialsinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/4.0/Monte Carlo simulationAtomistic simulation-1Atomistic simulation-1Core–shell bi-magnetic nanoparticles-1Core–shell bi-magnetic nanoparticles-1Interfacial exchange-1Interfacial exchange-1https://purl.org/pe-repo/ocde/ford#2.10.01-1Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchangeinfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC20.500.12390/3024oai:repositorio.concytec.gob.pe:20.500.12390/30242024-05-30 16:13:13.796https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="e3d48d34-3800-4247-8a48-9f5fb1d8bacb"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange</Title> <PublishedIn> <Publication> <Title>Nanomaterials</Title> </Publication> </PublishedIn> <PublicationDate>2021</PublicationDate> <DOI>https://doi.org/10.3390/nano11061381</DOI> <SCP-Number>2-s2.0-85106211003</SCP-Number> <Authors> <Author> <DisplayName>Ramos-Guivar J.A.</DisplayName> <Person id="rp05965" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Tamanaha-Vegas C.A.</DisplayName> <Person id="rp08656" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Litterst F.J.</DisplayName> <Person id="rp02031" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Passamani E.C.</DisplayName> <Person id="rp01941" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>MDPI AG</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>https://creativecommons.org/licenses/by-nc-nd/4.0/</License> <Keyword>Monte Carlo simulation</Keyword> <Keyword>Atomistic simulation</Keyword> <Keyword>Atomistic simulation</Keyword> <Keyword>Core–shell bi-magnetic nanoparticles</Keyword> <Keyword>Core–shell bi-magnetic nanoparticles</Keyword> <Keyword>Interfacial exchange</Keyword> <Keyword>Interfacial exchange</Keyword> <Abstract>Magnetic properties of ferromagnetic nanostructures were studied by atomistic simulations following Monte Carlo and Landau–Lifshitz–Gilbert approaches. First, we investigated the influence of particle size and shape on the temperature dependence of magnetization for single cobalt and gadolinium nanoparticles and also in bi-magnetic Co@Gd core–shell nanoparticles with different sizes. The Landau–Lifshitz–Gilbert approach was subsequently applied for inspecting the magnetic hysteresis behavior of 2 and 4 nm Co@Gd core–shell nanoparticles with negative, positive, and zero values of interfacial magnetic exchange. We were able to demonstrate the influence of finite-size effect on the dependence of the Curie temperature of Co and Gd nanoparticles. In the Co@Gd core–shell framework, it was possible to handle the critical temperature of the hybrid system by adjusting the Co core size. In addition, we found an improvement in the coercive field values for a negative interfacial exchange energy and for a different core size, suggesting an exchange spring behavior, while positive and zero values of interfacial exchange constant showed no strong influence on the hysteresis behavior. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1
score 13.413289
Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange
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