Abstract
In this work, high-quality Mn-doped 0.935Bi0.5Na0.5TiO3–0.065BaTiO3 (Mn-BNBT) ferroelectric film was prepared on the SrRuO3-buffered (100)-oriented SrTiO3 single-crystal substrate using pulsed laser deposition method. The phase structure, morphology, domain and electrical properties were studied. Large remnant polarization Pr up to 35 μC/cm2, moderate dielectric constant ɛT33 /ɛ0 of 800 and low dielectric loss tanδ of 0.037 at 1 kHz was obtained at room temperature along with excellent local piezoelectric response. The temperature dependence of the ferroelectric hysteresis loop measurements indicates the ferroelectric long-range order can be sustain as high as 150 °C. The excellent global properties make the present Mn-BNBT thin film quite potential in environmental-friendly piezoelectric integrated device applications.
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This work was supported by the National Natural Science Foundation of China (Grant Nos. 11974250 and 51772192) and the Science and Technology Commission of Shanghai Municipality (Grant Nos. 17070502700 and 19070502800).
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Li, Z., Huang, X., Wang, Y. et al. Ferroelectric and piezoelectric response in (100)-oriented Mn-doped Bi0.5Na0.5TiO3–BaTiO3 thin films. J Mater Sci 55, 8088–8094 (2020). https://doi.org/10.1007/s10853-020-04593-8
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DOI: https://doi.org/10.1007/s10853-020-04593-8