"Greening" the synthesis of SrBi229TaO thin films


A new procedure based on an ethanolic solution of the appropriate cations to obtain SrBi2Ta2O9 (SBT) thin films is described, reducing the necessity of toxic organicals. According to X-ray diffraction analysis the desired SBT crystalline phase is obtained after heat treatment at 720 degrees C, in air, for 20 min. The ferroelectric properties of the obtained thin film include a remnant polarization value of 5,0 mu C/cm(2) and a coercive field of 50 kV/cm, which are rather good results for a stoichiometric SBT thin film. (C) 2005 Elsevier B.V. All rights reserved.



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Materials Science; Physics


Gonzalez-Aguilar, G; Salvado, IMM; Costa, MEV

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