Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/19583
Título: | Dielectric investigations of polycrystalline samarium bismuth ferrite ceramic |
Autor: | Palaimiene, E. Macutkevic, J. Karpinsky, D. V. Kholkin, A. L. Banys, J. |
Palavras-chave: | CONDUCTIVITY BIFEO3 |
Data: | 2015 |
Editora: | AMER INST PHYSICS |
Resumo: | Results of broadband dielectric investigations of samarium doped bismuth ferrite ceramics are presented in wide temperature range (20-800 K). At temperatures higher than 400 K, the dielectric properties of samarium bismuth ferrite ceramics are governed by Maxwell-Wagner relaxation and electrical conductivity. The DC conductivity increases and activation energy decreases with samarium concentration. In samarium doped bismuth ferrite, the ferroelectric phase transition temperature decreases with samarium concentration and finally no ferroelectric order is observed at x = 0.2. At lower temperatures, the dielectric properties of ferroelectric samarium doped bismuth ferrite are governed by ferroelectric domains dynamics. Ceramics with x = 0.2 exhibit the relaxor-like behaviour. (C) 2015 AIP Publishing LLC. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/19583 |
DOI: | 10.1063/1.4905344 |
ISSN: | 0003-6951 |
Versão do Editor: | 10.1063/1.4905344 |
Aparece nas coleções: | CICECO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Dielectric investigations of polycrystalline samarium bismuth ferrite ceramic_10.10631.4905344.pdf | 1.63 MB | Adobe PDF | Ver/Abrir |
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