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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Structural refinement, optical and ferroelectric properties of microcrystalline Ba(Zr0.05Ti0.95)O-3 perovskite

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Autor(es):
Badapanda, T. [1] ; Sarangi, S. [2] ; Behera, B. [2] ; Sahoo, P. K. [3] ; Anwar, S. [4] ; Sinha, T. P. [5] ; Luz, Jr., G. E. [6] ; Longo, E. [7] ; Cavalcante, L. S. [6]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] CV Raman Coll Engn, Dept Phys, Bhubaneswar 752054, Odisha - India
[2] Sambalpur Univ, Sch Phys, Sambalpur 768019, Odisha - India
[3] NISER, Sch Phys Sci, Bhubaneswar, Odisha - India
[4] Inst Minerals & Mat Technol, Bhubaneswar 751013, Odisha - India
[5] Bose Inst, Dept Phys, Kolkata 700009, W Bengal - India
[6] Univ Estadual Piaui, CCN DQ GERATEC, BR-64002150 Teresina, PI - Brazil
[7] Univ Estadual Paulista CDMF, BR-14801907 Araraquara, SP - Brazil
Número total de Afiliações: 7
Tipo de documento: Artigo Científico
Fonte: CURRENT APPLIED PHYSICS; v. 14, n. 5, p. 708-715, MAY 2014.
Citações Web of Science: 24
Resumo

For this study, a microcrystalline Ba(Zr0.05Ti0.95)O-3 (BZT) powder was prepared by a high energy ball milling method followed by calcination at 1100 degrees C for 4 h. The calcined powder was structurally characterized by X-ray diffraction and Rietveld refinement data, which showed that this material has a perovskite-type tetragonal structure with a space group of (P4mmm). The micro-Raman spectrum revealed local lattice distortions due to distorted octahedral {[}TiO6] clusters. The temperature and frequency-dependent dielectric study of the BZT ceramic showed normal phase transition behavior. The ferroelectric property was studied by a P-E hysteresis loop. Optical band gap was investigated by ultraviolete-visible (UV-vis) absorption spectroscopy at room temperature. The UV-vis spectrum indicated that the BZT powder has an optical band gap of 3.15 eV. (C) 2014 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 09/50303-4 - Propriedades ópticas e fotocatalíticas do ZnMoO4 e ZnWO4
Beneficiário:Laécio Santos Cavalcante
Linha de fomento: Bolsas no Brasil - Pós-Doutorado