COMPARISON OF FERROELECTRIC PROPERTIES OF COSUBSTITUTED BISMUTH TITANATE FILMS BETWEENBi3.15Nd0.85Ti2.97Mg0.03O12ANDBi3.15Nd0.85Ti2.95Mn0.05O12

Z. S. Hu, X. L. Zhong (), J. B. Wang, M. Liao, X. J. Zheng and Y. C. Zhou
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Z. S. Hu: Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China;
X. L. Zhong: Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
J. B. Wang: Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
M. Liao: Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
X. J. Zheng: Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
Y. C. Zhou: Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China

Surface Review and Letters (SRL), 2009, vol. 16, issue 01, 153-156

Abstract: Aiming at the influence of substitution on ferroelectric behaviors,NdandMg/Mncosubstituted bismuth titanate films,Bi3.15Nd0.85Ti2.97Mg0.03O12(BNTMg) andBi3.15Nd0.85Ti2.95Mn0.05O12(BNTMn), have been prepared onPt/Ti/SiO2/Si(100)substrates at 700°C by a chemical solution deposition technique, respectively. A series of comparisons including structures, surface morphologies, and ferroelectric properties of the as-prepared films were carried out by X-ray diffraction, scanning electron microscope, and a Radiant Technologies Precision Workstation for ferroelectric test system. It was found that the films possess preferred the (117) and (00l)-oriented polycrystalline structures, and the remnant polarization of BNTMg film is larger than that of BNTMn film and the coercive field of BNTMn film is lower than that of BNTMg film. The values of2Prand2Ecof BNTMg and BNTMn are 28 μC/cm2and 212 kV/cm, and 15 μC/cm2and 175 kV/cm, respectively. The relevant physical mechanisms were pursued.

Keywords: Ferroelectrics thin films; chemical solution deposition; BNTMg; BNTMn; bismuth titanate (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0218625X09012421

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