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Control of Multiferroic properties in BiFeO(3) nanoparticles
BiFeO(3) (BFO) nanoparticles (NPs) were synthesized using the sol-gel method at different calcination temperatures from 400 °C to 600 °C. XRD studies have confirmed that all BFO NPs show distorted rhombohedral crystals that match the R3c space group. We found evidence of local structural strain that...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395681/ https://www.ncbi.nlm.nih.gov/pubmed/30816194 http://dx.doi.org/10.1038/s41598-019-39517-3 |
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author | Carranza-Celis, Diego Cardona-Rodríguez, Alexander Narváez, Jackeline Moscoso-Londono, Oscar Muraca, Diego Knobel, Marcelo Ornelas-Soto, Nancy Reiber, Andreas Ramírez, Juan Gabriel |
author_facet | Carranza-Celis, Diego Cardona-Rodríguez, Alexander Narváez, Jackeline Moscoso-Londono, Oscar Muraca, Diego Knobel, Marcelo Ornelas-Soto, Nancy Reiber, Andreas Ramírez, Juan Gabriel |
author_sort | Carranza-Celis, Diego |
collection | PubMed |
description | BiFeO(3) (BFO) nanoparticles (NPs) were synthesized using the sol-gel method at different calcination temperatures from 400 °C to 600 °C. XRD studies have confirmed that all BFO NPs show distorted rhombohedral crystals that match the R3c space group. We found evidence of local structural strain that develops with increasing particle size as suggested by TEM and Raman spectroscopy measurements. Magnetic measurements suggest that NPs have two distinct regimes: a ferromagnetic-like one at low temperatures and a superparamagnetic-like one at room temperature. The crossover temperature increases with NPs size, suggesting a size-dependent blocking magnetic regime. Similarly, local piezoelectric measurements at room temperature in single NP have confirmed a ferroelectric order with a NP size-dependent d(33) coefficient. An analysis of both the ferroelectric and the magnetic results suggest that ferromagnetism and ferroelectricity coexist at room temperature in NPs. Our results lead to the possibility of tailoring the ferroic order in multifunctional materials by means of NP size. |
format | Online Article Text |
id | pubmed-6395681 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-63956812019-03-04 Control of Multiferroic properties in BiFeO(3) nanoparticles Carranza-Celis, Diego Cardona-Rodríguez, Alexander Narváez, Jackeline Moscoso-Londono, Oscar Muraca, Diego Knobel, Marcelo Ornelas-Soto, Nancy Reiber, Andreas Ramírez, Juan Gabriel Sci Rep Article BiFeO(3) (BFO) nanoparticles (NPs) were synthesized using the sol-gel method at different calcination temperatures from 400 °C to 600 °C. XRD studies have confirmed that all BFO NPs show distorted rhombohedral crystals that match the R3c space group. We found evidence of local structural strain that develops with increasing particle size as suggested by TEM and Raman spectroscopy measurements. Magnetic measurements suggest that NPs have two distinct regimes: a ferromagnetic-like one at low temperatures and a superparamagnetic-like one at room temperature. The crossover temperature increases with NPs size, suggesting a size-dependent blocking magnetic regime. Similarly, local piezoelectric measurements at room temperature in single NP have confirmed a ferroelectric order with a NP size-dependent d(33) coefficient. An analysis of both the ferroelectric and the magnetic results suggest that ferromagnetism and ferroelectricity coexist at room temperature in NPs. Our results lead to the possibility of tailoring the ferroic order in multifunctional materials by means of NP size. Nature Publishing Group UK 2019-02-28 /pmc/articles/PMC6395681/ /pubmed/30816194 http://dx.doi.org/10.1038/s41598-019-39517-3 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Carranza-Celis, Diego Cardona-Rodríguez, Alexander Narváez, Jackeline Moscoso-Londono, Oscar Muraca, Diego Knobel, Marcelo Ornelas-Soto, Nancy Reiber, Andreas Ramírez, Juan Gabriel Control of Multiferroic properties in BiFeO(3) nanoparticles |
title | Control of Multiferroic properties in BiFeO(3) nanoparticles |
title_full | Control of Multiferroic properties in BiFeO(3) nanoparticles |
title_fullStr | Control of Multiferroic properties in BiFeO(3) nanoparticles |
title_full_unstemmed | Control of Multiferroic properties in BiFeO(3) nanoparticles |
title_short | Control of Multiferroic properties in BiFeO(3) nanoparticles |
title_sort | control of multiferroic properties in bifeo(3) nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395681/ https://www.ncbi.nlm.nih.gov/pubmed/30816194 http://dx.doi.org/10.1038/s41598-019-39517-3 |
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