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Origin of Lowered Crystallization Temperature in SBT-BTT Ferroelectric Thin Films

  • Woo-Chul Kwak (a1), Gopinathan M. A. Kumar (a1), Se-Yon Jung (a1), Seung-Joon Hwang (a1) and Yun-Mo Sung (a1)...

Abstract

The crystallization kinetics of SBT and SBT-BTT thin films formed by sol-gel technique on Pt substrate was studied. Phase formation and crystal growth are greatly affected by the film composition and crystallization temperature. Isothermal kinetics analysis was performed on x-ray diffraction (XRD) patterns of the thin films heated in the range 730 to 760° at 10° intervals. Activation energy and Avrami exponent values were determined for the fluorite to Aurivillus phase formation. A reduction of ∼55 kJ/mol in activation is observed for the SBT-BTT system. A comparison has been made and the possible crystallization mechanism is discussed.

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Origin of Lowered Crystallization Temperature in SBT-BTT Ferroelectric Thin Films

  • Woo-Chul Kwak (a1), Gopinathan M. A. Kumar (a1), Se-Yon Jung (a1), Seung-Joon Hwang (a1) and Yun-Mo Sung (a1)...

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