Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/99949 https://doi.org/10.1016/j.jallcom.2018.10.142 |
Resumo: | We have investigated the effect of multi-doping in A and B site of the multiferroic prepared by the Sol-gel method Bi0.8Er0.1Ba0.1Fe0.96Co0.02Cr0.02O3 (BEBFCC) on the structural, morphological and electric properties. X-Ray diffraction and Rietveld refinement confirm that the BEBFCC compound presents a rhombohedral structure with the R3C space group. The Ac electrical properties have been measured from 331 to 735 K as a function of frequency (100 kHz - 1 MHz). Debye's theory and Arrhenius relations were used to study the relaxation phenomenon. The frequency dependence of the impedance (Z”: imaginary part) reveals the existence of one relaxation peak, while the Modulus formalism shows two peaks. The presence of two contributions, related to the dielectric relaxations visible in this compound, was confirmed by the Impedance Nyquist plots. The study of the ac conductivity based on Jonsher's power law confirms that the conduction is associated to the Non-Overlapping Small Polaron Tunneling model. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
spelling |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> materialMultiferroicCeramicsImpedance spectroscopyBismuth ferritePerovskiteWe have investigated the effect of multi-doping in A and B site of the multiferroic prepared by the Sol-gel method Bi0.8Er0.1Ba0.1Fe0.96Co0.02Cr0.02O3 (BEBFCC) on the structural, morphological and electric properties. X-Ray diffraction and Rietveld refinement confirm that the BEBFCC compound presents a rhombohedral structure with the R3C space group. The Ac electrical properties have been measured from 331 to 735 K as a function of frequency (100 kHz - 1 MHz). Debye's theory and Arrhenius relations were used to study the relaxation phenomenon. The frequency dependence of the impedance (Z”: imaginary part) reveals the existence of one relaxation peak, while the Modulus formalism shows two peaks. The presence of two contributions, related to the dielectric relaxations visible in this compound, was confirmed by the Impedance Nyquist plots. The study of the ac conductivity based on Jonsher's power law confirms that the conduction is associated to the Non-Overlapping Small Polaron Tunneling model.Elsevier2018-10-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/99949http://hdl.handle.net/10316/99949https://doi.org/10.1016/j.jallcom.2018.10.142eng0925-8388Benali, A.Melo, B.M.G.Prezas, P.R.Bejar, M.Dhahri, E.Valente, M.A.Graça, M.P.F.Nogueira, Bernardo AlbuquerqueCosta, B.F.O.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-11-15T12:05:11Zoai:estudogeral.uc.pt:10316/99949Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:12:57.714222Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
title |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
spellingShingle |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material Benali, A. Multiferroic Ceramics Impedance spectroscopy Bismuth ferrite Perovskite |
title_short |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
title_full |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
title_fullStr |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
title_full_unstemmed |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
title_sort |
Structural, morphological, Raman and ac electrical properties of the multiferroic sol-gel made Bi<inf>0.8</inf>Er<inf>0.1</inf>Ba<inf>0.1</inf>Fe<inf>0.96</inf>Cr<inf>0.02</inf>Co<inf>0.02</inf>O<inf>3</inf> material |
author |
Benali, A. |
author_facet |
Benali, A. Melo, B.M.G. Prezas, P.R. Bejar, M. Dhahri, E. Valente, M.A. Graça, M.P.F. Nogueira, Bernardo Albuquerque Costa, B.F.O. |
author_role |
author |
author2 |
Melo, B.M.G. Prezas, P.R. Bejar, M. Dhahri, E. Valente, M.A. Graça, M.P.F. Nogueira, Bernardo Albuquerque Costa, B.F.O. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Benali, A. Melo, B.M.G. Prezas, P.R. Bejar, M. Dhahri, E. Valente, M.A. Graça, M.P.F. Nogueira, Bernardo Albuquerque Costa, B.F.O. |
dc.subject.por.fl_str_mv |
Multiferroic Ceramics Impedance spectroscopy Bismuth ferrite Perovskite |
topic |
Multiferroic Ceramics Impedance spectroscopy Bismuth ferrite Perovskite |
description |
We have investigated the effect of multi-doping in A and B site of the multiferroic prepared by the Sol-gel method Bi0.8Er0.1Ba0.1Fe0.96Co0.02Cr0.02O3 (BEBFCC) on the structural, morphological and electric properties. X-Ray diffraction and Rietveld refinement confirm that the BEBFCC compound presents a rhombohedral structure with the R3C space group. The Ac electrical properties have been measured from 331 to 735 K as a function of frequency (100 kHz - 1 MHz). Debye's theory and Arrhenius relations were used to study the relaxation phenomenon. The frequency dependence of the impedance (Z”: imaginary part) reveals the existence of one relaxation peak, while the Modulus formalism shows two peaks. The presence of two contributions, related to the dielectric relaxations visible in this compound, was confirmed by the Impedance Nyquist plots. The study of the ac conductivity based on Jonsher's power law confirms that the conduction is associated to the Non-Overlapping Small Polaron Tunneling model. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-13 |
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://hdl.handle.net/10316/99949 http://hdl.handle.net/10316/99949 https://doi.org/10.1016/j.jallcom.2018.10.142 |
url |
http://hdl.handle.net/10316/99949 https://doi.org/10.1016/j.jallcom.2018.10.142 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0925-8388 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1817551248119824384 |