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Preparation and ferroelectric properties of predominantly (100)-oriented SrBi Ti O ferroelectric thin film on Pt(111)/TiO /SiO /Si(100) substrate

Journal of Materials Science: Materials in Electronics, ISSN: 0957-4522, Vol: 20, Issue: 2, Page: 113-116
2009
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A predominantly (100)-oriented SrBi Ti O (SBTi) ferroelectric thin film (orientation factor f = 68%) was formed on Pt(111)/TiO /SiO /Si(100) substrate using a metal organic decomposition process combined with a sequential layer annealing method. The film exhibits a well saturated hysteresis loop with a remanent polarization of 25 μC/cm . Furthermore, the coercive field (E ) is as low as 80 kV/cm. The values of the dielectric constant (Ε ) and dissipation factor (tan δ) at 100 kHz are estimated to be 380 and 0.08, respectively. 15% loss of P was observed after 10 switching cycles in the predominantly (100)-oriented SBTi film. The growth mode of the predominantly (100)-oriented SBTi film is discussed based on the sequential layer annealing process and the anisotropic structure of SBTi. © Springer Science+Business Media, LLC 2008.

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