Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method

Detalhes bibliográficos
Autor(a) principal: Ortega, Pedro Paulo Silva [UNESP]
Data de Publicação: 2014
Outros Autores: Ramirez, Miguel Angel [UNESP], Foschini, César Renato [UNESP], Garcia, Filiberto González, Cilense, Mario [UNESP], Simões, Alexandre Zirpoli [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2298/pac1404211o
http://hdl.handle.net/11449/135528
Resumo: A study was undertaken about the structural, morphological and magnetic properties at room temperature of crystalline aluminium substituted yttrium iron garnet, YIG (Y3Fe5-xAlxO12 with 1.5< x < 1.7) nanoparticles prepared by polymeric precursor method at the temperature of 700 °C for 2 hours. The single-phase character and the well-defined structure of YIG nanoparticles were confirmed by X-ray diffraction, excluding the presence of any other phases. The Raman spectra showed that the changes of lattice vibration would influence interaction between the Fe ion and the host. Mean crystallite size of the single-phase powder was about 46–65 nm. Particles’ morphology was investigated by high-resolution transmission electron microscopy, which shows that the particles were agglomerated. From hysteresis loops, particles’ efficiency range from 91.4% to 95.9% as Fe/Al ratio decreases. Saturation magnetization was affected by the particle size and Fe/Al stoichiometric ratio. We observe that the saturation magnetization increases as the Fe/Al ratio is raised due to enhancement of the surface spin effects.
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spelling Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical methodYttrium iron garnetPowderChemical synthesisCharacterizationMagnetic propertiesA study was undertaken about the structural, morphological and magnetic properties at room temperature of crystalline aluminium substituted yttrium iron garnet, YIG (Y3Fe5-xAlxO12 with 1.5< x < 1.7) nanoparticles prepared by polymeric precursor method at the temperature of 700 °C for 2 hours. The single-phase character and the well-defined structure of YIG nanoparticles were confirmed by X-ray diffraction, excluding the presence of any other phases. The Raman spectra showed that the changes of lattice vibration would influence interaction between the Fe ion and the host. Mean crystallite size of the single-phase powder was about 46–65 nm. Particles’ morphology was investigated by high-resolution transmission electron microscopy, which shows that the particles were agglomerated. From hysteresis loops, particles’ efficiency range from 91.4% to 95.9% as Fe/Al ratio decreases. Saturation magnetization was affected by the particle size and Fe/Al stoichiometric ratio. We observe that the saturation magnetization increases as the Fe/Al ratio is raised due to enhancement of the surface spin effects.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto Nacional de Ciências dos Materiais em Nanotecnologia (INCTMN)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Engenharia de Guaratinguetá (FEG), Departamento de Engenharia de Materiais, Guaratinguetá, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Engenharia de Guaratinguetá (FEG), Departamento de Materiais e Tecnologia, Guaratinguetá, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Engenharia de Bauru (FEB), Departamento de Engenharia Mecânica, Bauru, SP, BrasilUniversidade Federal de Itajubá (UNIFEI), Instituto de Física e Química, Itajubá, MG, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Instituto de Química (IQ), Departamento de Química Inorgânica, Araraquara, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Engenharia de Guaratinguetá (FEG), Departamento de Engenharia de Materiais, Guaratinguetá, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Engenharia de Guaratinguetá (FEG), Departamento de Materiais e Tecnologia, Guaratinguetá, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Engenharia de Bauru (FEB), Departamento de Engenharia Mecânica, Bauru, SP, BrasilUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Instituto de Química (IQ), Departamento de Química Inorgânica, Araraquara, SP, BrasilCNPq: 573636/2008-7INCTMN: 2008/57872-1FAPESP: 2013/07296-2Universidade Estadual Paulista (Unesp)Universidade Federal de Itajubá (UNIFEI)Ortega, Pedro Paulo Silva [UNESP]Ramirez, Miguel Angel [UNESP]Foschini, César Renato [UNESP]Garcia, Filiberto GonzálezCilense, Mario [UNESP]Simões, Alexandre Zirpoli [UNESP]2016-03-02T13:03:10Z2016-03-02T13:03:10Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article211-218application/pdfhttp://dx.doi.org/10.2298/pac1404211oProcessing and Application of Ceramics, v. 8, n. 4, p. 211-218, 2014.1820-6131http://hdl.handle.net/11449/13552810.2298/pac1404211oISSN1820-6131-2014-08-04-211-218.pdf9128353103083394357336348661490419223571848427670000-0003-1300-4978Currículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProcessing and Application of Ceramics1.1520,318info:eu-repo/semantics/openAccess2023-12-22T06:19:46Zoai:repositorio.unesp.br:11449/135528Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-22T06:19:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
title Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
spellingShingle Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
Ortega, Pedro Paulo Silva [UNESP]
Yttrium iron garnet
Powder
Chemical synthesis
Characterization
Magnetic properties
title_short Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
title_full Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
title_fullStr Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
title_full_unstemmed Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
title_sort Synthesis, structure and magnetic properties of Y3Fe5-xAlxO12 garnets prepared by the soft chemical method
author Ortega, Pedro Paulo Silva [UNESP]
author_facet Ortega, Pedro Paulo Silva [UNESP]
Ramirez, Miguel Angel [UNESP]
Foschini, César Renato [UNESP]
Garcia, Filiberto González
Cilense, Mario [UNESP]
Simões, Alexandre Zirpoli [UNESP]
author_role author
author2 Ramirez, Miguel Angel [UNESP]
Foschini, César Renato [UNESP]
Garcia, Filiberto González
Cilense, Mario [UNESP]
Simões, Alexandre Zirpoli [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de Itajubá (UNIFEI)
dc.contributor.author.fl_str_mv Ortega, Pedro Paulo Silva [UNESP]
Ramirez, Miguel Angel [UNESP]
Foschini, César Renato [UNESP]
Garcia, Filiberto González
Cilense, Mario [UNESP]
Simões, Alexandre Zirpoli [UNESP]
dc.subject.por.fl_str_mv Yttrium iron garnet
Powder
Chemical synthesis
Characterization
Magnetic properties
topic Yttrium iron garnet
Powder
Chemical synthesis
Characterization
Magnetic properties
description A study was undertaken about the structural, morphological and magnetic properties at room temperature of crystalline aluminium substituted yttrium iron garnet, YIG (Y3Fe5-xAlxO12 with 1.5< x < 1.7) nanoparticles prepared by polymeric precursor method at the temperature of 700 °C for 2 hours. The single-phase character and the well-defined structure of YIG nanoparticles were confirmed by X-ray diffraction, excluding the presence of any other phases. The Raman spectra showed that the changes of lattice vibration would influence interaction between the Fe ion and the host. Mean crystallite size of the single-phase powder was about 46–65 nm. Particles’ morphology was investigated by high-resolution transmission electron microscopy, which shows that the particles were agglomerated. From hysteresis loops, particles’ efficiency range from 91.4% to 95.9% as Fe/Al ratio decreases. Saturation magnetization was affected by the particle size and Fe/Al stoichiometric ratio. We observe that the saturation magnetization increases as the Fe/Al ratio is raised due to enhancement of the surface spin effects.
publishDate 2014
dc.date.none.fl_str_mv 2014
2016-03-02T13:03:10Z
2016-03-02T13:03:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.2298/pac1404211o
Processing and Application of Ceramics, v. 8, n. 4, p. 211-218, 2014.
1820-6131
http://hdl.handle.net/11449/135528
10.2298/pac1404211o
ISSN1820-6131-2014-08-04-211-218.pdf
9128353103083394
3573363486614904
1922357184842767
0000-0003-1300-4978
url http://dx.doi.org/10.2298/pac1404211o
http://hdl.handle.net/11449/135528
identifier_str_mv Processing and Application of Ceramics, v. 8, n. 4, p. 211-218, 2014.
1820-6131
10.2298/pac1404211o
ISSN1820-6131-2014-08-04-211-218.pdf
9128353103083394
3573363486614904
1922357184842767
0000-0003-1300-4978
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Processing and Application of Ceramics
1.152
0,318
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 211-218
application/pdf
dc.source.none.fl_str_mv Currículo Lattes
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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