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Type: Artigo de periódico
Title: Ferroic investigations in LuFe2O4 multiferroic ceramics
Author: Viana, DSF
Gotardo, RAM
Cotica, LF
Santos, IA
Olzon-Dionysio, M
Souza, SD
Garcia, D
Eiras, JA
Coelho, AA
Abstract: In this paper, the ferroic properties of polycrystalline LuFe2O4 samples were carefully investigated, and a dissimilar charge ordered state was identified. Strong dielectric dispersion, between 350 K and 225 K; the formation of cluster glass magnetic phases in the same temperature range; and the existence of a ferrimagnetic transition at 230 K indicate the coupling between the ferroelectric and the magnetic orders. Mossbauer spectroscopic investigations, at room temperature, revealed unbalanced contributions of the ferric and ferrous iron ions to the charge ordered state. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622147]
Country: EUA
Editor: Amer Inst Physics
Citation: Journal Of Applied Physics. Amer Inst Physics, v. 110, n. 3, 2011.
Rights: aberto
Identifier DOI: 10.1063/1.3622147
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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