Please use this identifier to cite or link to this item: https://doi.org/10.1039/c0jm04026f
Title: Multiferroic and fatigue behavior of silicon-based bismuth ferrite sandwiched structure
Authors: Wu, J. 
Wang, J. 
Xiao, D.
Zhu, J.
Issue Date: 28-May-2011
Citation: Wu, J., Wang, J., Xiao, D., Zhu, J. (2011-05-28). Multiferroic and fatigue behavior of silicon-based bismuth ferrite sandwiched structure. Journal of Materials Chemistry 21 (20) : 7308-7313. ScholarBank@NUS Repository. https://doi.org/10.1039/c0jm04026f
Abstract: Sandwich structured (Bi0.92La0.08)(Fe 0.87Zn0.13)O3/(Bi0.92La 0.08)(Fe0.93Zn0.07)O3/(Bi 0.92La0.08)(Fe0.87Zn0.13)O 3 thin films were prepared on Pt/TiO2/SiO 2/Si(100) substrates by radio frequency sputtering. High (110) orientation is induced in these sandwiched structures due to the introduction of the bottom (Bi0.92La0.08)(Fe0.87Zn 0.13)O3 layer with a (110) orientation. The space-charge-limited current mechanism is identified to dominate the leakage behavior of these sandwiched structures, and the lowest leakage current density is well established in such a sandwiched structure with a thickness ratio of 1:1:1 owing to its denser microstructure. All sandwiched structures demonstrate good fatigue behavior at a switching cycle of ∼2.96 × 109 and similar saturated M-H loops with 2M ∼ 15.5 emu cm-3 due to the interface coupling among these constituent layers. The sandwiched structure with a thickness ratio of 1:1:1 possesses a better P-E loop with a high remanent polarization of 2Pr ∼ 142.6 μC cm-2 and a low coercive field of 2Ec ∼ 695.0 kV cm-1. As a result, the sandwiched structure is an effective way to improve the multiferroic and fatigue behavior of bismuth ferrite materials. © 2011 The Royal Society of Chemistry.
Source Title: Journal of Materials Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/86571
ISSN: 09599428
DOI: 10.1039/c0jm04026f
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