Publicação: Influence of oxygen atmosphere on crystallization and properties of LiNbO3 thin films
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2004-01-01
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Elsevier B.V.
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Thin films of lithium niobate were deposited on the Pt/Ti/SiO2 (111) substrates by spin coating from the polymeric precursor method (Pechini process). Annealing in static air and oxygen atmosphere was performed at 500 degreesC for 3 h. The films obtained were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The dielectric constant and dissipation factor were measured in frequency region from 10 Hz to 10 MHz. Electrical characterization of the films pointed to ferroelectricity via hysteresis loop. The influence of oxygen atmosphere on crystallization, morphology and properties of LiNbO3 thin films is discussed. (C) 2003 Elsevier Ltd. All rights reserved.
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Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 24, n. 6, p. 1607-1613, 2004.
