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Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics

Magnetic and electric properties are investigated for the nanosized YMnO(3 )samples with different grain sizes (25 nm to 200 nm) synthesized by a modified Pechini method. It shows that magnetic and electric properties are strongly dependent on the grain size. The magnetic characterization indicates...

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Detalles Bibliográficos
Autores principales: Han, Tai-Chun, Hsu, Wei-Lun, Lee, Wei-Da
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211257/
https://www.ncbi.nlm.nih.gov/pubmed/21711722
http://dx.doi.org/10.1186/1556-276X-6-201
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author Han, Tai-Chun
Hsu, Wei-Lun
Lee, Wei-Da
author_facet Han, Tai-Chun
Hsu, Wei-Lun
Lee, Wei-Da
author_sort Han, Tai-Chun
collection PubMed
description Magnetic and electric properties are investigated for the nanosized YMnO(3 )samples with different grain sizes (25 nm to 200 nm) synthesized by a modified Pechini method. It shows that magnetic and electric properties are strongly dependent on the grain size. The magnetic characterization indicates that with increasing grain size, the antiferromagnetic (AFM) transition temperature increases from 52 to 74 K. A corresponding shift of the dielectric anomaly is observed, indicating a strong correlation between the electric polarization and the magnetic ordering. Further analysis suggests that the rising of AFM transition temperature with increasing grain size should be from the structural origin, in which the strength of AFM interaction as well as the electrical polarization is dependent on the in-plane lattice parameters. Furthermore, among all samples, the sample with grain size of 95 nm is found to have the smallest leakage current density (< 1 μA/cm(2)). PACS: 75.50.Tt, 75.50.Ee, 75.85.+t, 77.84.-s
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spelling pubmed-32112572011-11-09 Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics Han, Tai-Chun Hsu, Wei-Lun Lee, Wei-Da Nanoscale Res Lett Nano Express Magnetic and electric properties are investigated for the nanosized YMnO(3 )samples with different grain sizes (25 nm to 200 nm) synthesized by a modified Pechini method. It shows that magnetic and electric properties are strongly dependent on the grain size. The magnetic characterization indicates that with increasing grain size, the antiferromagnetic (AFM) transition temperature increases from 52 to 74 K. A corresponding shift of the dielectric anomaly is observed, indicating a strong correlation between the electric polarization and the magnetic ordering. Further analysis suggests that the rising of AFM transition temperature with increasing grain size should be from the structural origin, in which the strength of AFM interaction as well as the electrical polarization is dependent on the in-plane lattice parameters. Furthermore, among all samples, the sample with grain size of 95 nm is found to have the smallest leakage current density (< 1 μA/cm(2)). PACS: 75.50.Tt, 75.50.Ee, 75.85.+t, 77.84.-s Springer 2011-03-08 /pmc/articles/PMC3211257/ /pubmed/21711722 http://dx.doi.org/10.1186/1556-276X-6-201 Text en Copyright ©2011 Han et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Han, Tai-Chun
Hsu, Wei-Lun
Lee, Wei-Da
Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics
title Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics
title_full Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics
title_fullStr Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics
title_full_unstemmed Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics
title_short Grain size-dependent magnetic and electric properties in nanosized YMnO(3 )multiferroic ceramics
title_sort grain size-dependent magnetic and electric properties in nanosized ymno(3 )multiferroic ceramics
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211257/
https://www.ncbi.nlm.nih.gov/pubmed/21711722
http://dx.doi.org/10.1186/1556-276X-6-201
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