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The 0.935(Na_{0.5}Bi_{0.5})TiO₃-0.065BaTiO₃ lead free ceramic was synthesized by conventional solid state reaction technique. Sintering was done at 1200°C for 4 h in air atmosphere. Dielectric and Raman spectroscopic studies have been performed as a function of temperature from 25 to 450°C. The phase transitions from ferroelectric to antiferroelectric and from antiferroelectric to paraelectric order were observed through the dielectric measurements. Further support for the obtained results was drawn from the Raman spectroscopy measurements.
Laboratoire d'Étude et Développement des Matériaux Semi-conducteurs et Diélectriques, Université de Laghouat, Route de Ghardaïa, B.P. 37G, Laghouat, Algeria
Laboratoire des Matériaux et Procédés, Université de Valenciennes et du Hainaut-Cambrésis, Z.I. du Champ de l'Abbesse, 59600 Maubeuge, France
Laboratoire d'Étude et Développement des Matériaux Semi-conducteurs et Diélectriques, Université de Laghouat, Route de Ghardaïa, B.P. 37G, Laghouat, Algeria
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