Affiliation:
1. Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
2. Faculty of Information Engineering, Kaifeng University, Kaifeng 475004, China
Abstract
Aiming at the influence of substitution on ferroelectric behaviors, Nd and Mg / Mn cosubstituted bismuth titanate films, Bi 3.15 Nd 0.85 Ti 2.97 Mg 0.03 O 12 (BNTMg) and Bi 3.15 Nd 0.85 Ti 2.95 Mn 0.05 O 12 (BNTMn), have been prepared on Pt / Ti / SiO 2/ 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 of 2Pr and 2Ec of BNTMg and BNTMn are 28 μC/cm2 and 212 kV/cm, and 15 μC/cm2 and 175 kV/cm, respectively. The relevant physical mechanisms were pursued.
Publisher
World Scientific Pub Co Pte Lt
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics
Cited by
4 articles.
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