Structure and composition of Au/Co magneto-plasmonic nanoparticles

Autores
Bhattarai, Nabraj; Casillas, Gilberto; Khanal, Subarna; Bahena, Daniel; Velazquez Salazar, J. Jesús; Mejía, Sergio; Ponce, Arturo; Dravid, Vinayak P.; Whetten, Robert L.; Mariscal, Marcelo; José Yacamán, Miguel
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The fabrication of bimetallic magnetic nanoparticles (NPs) smaller than the size of single magnetic domain is very challenging because of the agglomeration, non-uniform size, and possible complex chemistry at nanoscale. In this paper, we present an alloyed ferromagnetic 4 ± 1 nm thiolated Au/Co magnetic NPs with decahedral and icosahedral shape. The NPs were characterized by Cs-corrected scanning transmission electron microscopy (STEM) and weretheoretically studied by Grand Canonical Monte Carlo simulations. Comparison of Z-contrast imaging and energy dispersive x-ray spectroscopy used jointly with STEM simulated images from theoretical models uniquely showed an inhomogeneous alloying with minor segregation. The magnetic measurements obtained from superconducting quantum interference device magnetometer exhibited ferromagnetic behavior. This magnetic nanoalloy in the range of single domain is fully magnetized and carries significance as a promising candidate for magnetic data recording, permanent magnetization, and biomedical applications.
Fil: Bhattarai, Nabraj. University of Texas; Estados Unidos
Fil: Casillas, Gilberto. University of Texas; Estados Unidos
Fil: Khanal, Subarna. University of Texas; Estados Unidos
Fil: Bahena, Daniel. University of Texas; Estados Unidos
Fil: Velazquez Salazar, J. Jesús. University of Texas; Estados Unidos
Fil: Mejía, Sergio. Universidad Autónoma de Nuevo León; México
Fil: Ponce, Arturo. University of Texas; Estados Unidos
Fil: Dravid, Vinayak P.. Northwestern University; Estados Unidos
Fil: Whetten, Robert L.. University of Texas; Estados Unidos
Fil: Mariscal, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: José Yacamán, Miguel. University of Texas; Estados Unidos
Materia
Nanoparticles
Plasmonic
Magneto
Core-Shell
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:11336/25718
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/25718
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structure and composition of Au/Co magneto-plasmonic nanoparticlesBhattarai, NabrajCasillas, GilbertoKhanal, SubarnaBahena, DanielVelazquez Salazar, J. JesúsMejía, SergioPonce, ArturoDravid, Vinayak P.Whetten, Robert L.Mariscal, MarceloJosé Yacamán, MiguelNanoparticlesPlasmonicMagnetoCore-Shellhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The fabrication of bimetallic magnetic nanoparticles (NPs) smaller than the size of single magnetic domain is very challenging because of the agglomeration, non-uniform size, and possible complex chemistry at nanoscale. In this paper, we present an alloyed ferromagnetic 4 ± 1 nm thiolated Au/Co magnetic NPs with decahedral and icosahedral shape. The NPs were characterized by Cs-corrected scanning transmission electron microscopy (STEM) and weretheoretically studied by Grand Canonical Monte Carlo simulations. Comparison of Z-contrast imaging and energy dispersive x-ray spectroscopy used jointly with STEM simulated images from theoretical models uniquely showed an inhomogeneous alloying with minor segregation. The magnetic measurements obtained from superconducting quantum interference device magnetometer exhibited ferromagnetic behavior. This magnetic nanoalloy in the range of single domain is fully magnetized and carries significance as a promising candidate for magnetic data recording, permanent magnetization, and biomedical applications.Fil: Bhattarai, Nabraj. University of Texas; Estados UnidosFil: Casillas, Gilberto. University of Texas; Estados UnidosFil: Khanal, Subarna. University of Texas; Estados UnidosFil: Bahena, Daniel. University of Texas; Estados UnidosFil: Velazquez Salazar, J. Jesús. University of Texas; Estados UnidosFil: Mejía, Sergio. Universidad Autónoma de Nuevo León; MéxicoFil: Ponce, Arturo. University of Texas; Estados UnidosFil: Dravid, Vinayak P.. Northwestern University; Estados UnidosFil: Whetten, Robert L.. University of Texas; Estados UnidosFil: Mariscal, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: José Yacamán, Miguel. University of Texas; Estados UnidosCambridge University Press2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25718Bhattarai, Nabraj ; Casillas, Gilberto; Khanal, Subarna; Bahena, Daniel; Velazquez Salazar, J. Jesús; et al.; Structure and composition of Au/Co magneto-plasmonic nanoparticles ; Cambridge University Press; MRS Communications; 3; 3; 8-2013; 177-1832159-6859CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1557/mrc.2013.30info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/mrs-communications/article/structure-and-composition-of-auco-magnetoplasmonic-nanoparticles/D30D68A5250043FC923958EB60F3D8ECinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:33Zoai:ri.conicet.gov.ar:11336/25718instacron: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:34982025-09-03 09:46:34.078CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structure and composition of Au/Co magneto-plasmonic nanoparticles
title Structure and composition of Au/Co magneto-plasmonic nanoparticles
spellingShingle Structure and composition of Au/Co magneto-plasmonic nanoparticles
Bhattarai, Nabraj
Nanoparticles
Plasmonic
Magneto
Core-Shell
title_short Structure and composition of Au/Co magneto-plasmonic nanoparticles
title_full Structure and composition of Au/Co magneto-plasmonic nanoparticles
title_fullStr Structure and composition of Au/Co magneto-plasmonic nanoparticles
title_full_unstemmed Structure and composition of Au/Co magneto-plasmonic nanoparticles
title_sort Structure and composition of Au/Co magneto-plasmonic nanoparticles
dc.creator.none.fl_str_mv Bhattarai, Nabraj
Casillas, Gilberto
Khanal, Subarna
Bahena, Daniel
Velazquez Salazar, J. Jesús
Mejía, Sergio
Ponce, Arturo
Dravid, Vinayak P.
Whetten, Robert L.
Mariscal, Marcelo
José Yacamán, Miguel
author Bhattarai, Nabraj
author_facet Bhattarai, Nabraj
Casillas, Gilberto
Khanal, Subarna
Bahena, Daniel
Velazquez Salazar, J. Jesús
Mejía, Sergio
Ponce, Arturo
Dravid, Vinayak P.
Whetten, Robert L.
Mariscal, Marcelo
José Yacamán, Miguel
author_role author
author2 Casillas, Gilberto
Khanal, Subarna
Bahena, Daniel
Velazquez Salazar, J. Jesús
Mejía, Sergio
Ponce, Arturo
Dravid, Vinayak P.
Whetten, Robert L.
Mariscal, Marcelo
José Yacamán, Miguel
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Nanoparticles
Plasmonic
Magneto
Core-Shell
topic Nanoparticles
Plasmonic
Magneto
Core-Shell
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The fabrication of bimetallic magnetic nanoparticles (NPs) smaller than the size of single magnetic domain is very challenging because of the agglomeration, non-uniform size, and possible complex chemistry at nanoscale. In this paper, we present an alloyed ferromagnetic 4 ± 1 nm thiolated Au/Co magnetic NPs with decahedral and icosahedral shape. The NPs were characterized by Cs-corrected scanning transmission electron microscopy (STEM) and weretheoretically studied by Grand Canonical Monte Carlo simulations. Comparison of Z-contrast imaging and energy dispersive x-ray spectroscopy used jointly with STEM simulated images from theoretical models uniquely showed an inhomogeneous alloying with minor segregation. The magnetic measurements obtained from superconducting quantum interference device magnetometer exhibited ferromagnetic behavior. This magnetic nanoalloy in the range of single domain is fully magnetized and carries significance as a promising candidate for magnetic data recording, permanent magnetization, and biomedical applications.
Fil: Bhattarai, Nabraj. University of Texas; Estados Unidos
Fil: Casillas, Gilberto. University of Texas; Estados Unidos
Fil: Khanal, Subarna. University of Texas; Estados Unidos
Fil: Bahena, Daniel. University of Texas; Estados Unidos
Fil: Velazquez Salazar, J. Jesús. University of Texas; Estados Unidos
Fil: Mejía, Sergio. Universidad Autónoma de Nuevo León; México
Fil: Ponce, Arturo. University of Texas; Estados Unidos
Fil: Dravid, Vinayak P.. Northwestern University; Estados Unidos
Fil: Whetten, Robert L.. University of Texas; Estados Unidos
Fil: Mariscal, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: José Yacamán, Miguel. University of Texas; Estados Unidos
description The fabrication of bimetallic magnetic nanoparticles (NPs) smaller than the size of single magnetic domain is very challenging because of the agglomeration, non-uniform size, and possible complex chemistry at nanoscale. In this paper, we present an alloyed ferromagnetic 4 ± 1 nm thiolated Au/Co magnetic NPs with decahedral and icosahedral shape. The NPs were characterized by Cs-corrected scanning transmission electron microscopy (STEM) and weretheoretically studied by Grand Canonical Monte Carlo simulations. Comparison of Z-contrast imaging and energy dispersive x-ray spectroscopy used jointly with STEM simulated images from theoretical models uniquely showed an inhomogeneous alloying with minor segregation. The magnetic measurements obtained from superconducting quantum interference device magnetometer exhibited ferromagnetic behavior. This magnetic nanoalloy in the range of single domain is fully magnetized and carries significance as a promising candidate for magnetic data recording, permanent magnetization, and biomedical applications.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
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/11336/25718
Bhattarai, Nabraj ; Casillas, Gilberto; Khanal, Subarna; Bahena, Daniel; Velazquez Salazar, J. Jesús; et al.; Structure and composition of Au/Co magneto-plasmonic nanoparticles ; Cambridge University Press; MRS Communications; 3; 3; 8-2013; 177-183
2159-6859
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25718
identifier_str_mv Bhattarai, Nabraj ; Casillas, Gilberto; Khanal, Subarna; Bahena, Daniel; Velazquez Salazar, J. Jesús; et al.; Structure and composition of Au/Co magneto-plasmonic nanoparticles ; Cambridge University Press; MRS Communications; 3; 3; 8-2013; 177-183
2159-6859
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1557/mrc.2013.30
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/mrs-communications/article/structure-and-composition-of-auco-magnetoplasmonic-nanoparticles/D30D68A5250043FC923958EB60F3D8EC
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 Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
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 13.13397

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