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首页> 外文期刊>RSC Advances >Effects of Ba0.7Sr0.3TiO3-based buffer layers and La/Mn doping on the crystallization behavior and multiferroic properties of BiFeO3 thin films
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Effects of Ba0.7Sr0.3TiO3-based buffer layers and La/Mn doping on the crystallization behavior and multiferroic properties of BiFeO3 thin films

机译：Ba0.7Sr0.3TiO3基缓冲层和La / Mn掺杂对BiFeO3薄膜结晶行为和多铁性的影响

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摘要

A detailed study of the BiFeO3 (BFO)-based bilayer films with improved multiferroic properties is reported. The BFO film without any impurity phase was obtained using Ba0.7Sr0.3TiO3 (BSTO) as a buffer layer. And the leakage currents of the bilayer film were found to reduce effectively through La and Mn co-doping of the BFO Layer. Moreover, magnetodielectric response and ferroelectric domains were observed in the Bi0.9La0.1Fe0.95Mn0.05O3 (BLFMO)/BSTO film. We additionally investigated the effects of the BSTO-Ni0.8Zn0.2Fe2O4 (NZFO) buffer layer on the multiferroic performances and surface morphology of the BLFMO film. It was found that the BSTO-NZFO composite film could significantly enhance the magnetic and magnetodielectric properties of the BLFMO film. In particular, the BLFMO/BSTO-NZFO film possessed a higher coercivity value as compared to the BLFMO/BSTO film.
机译：报告了具有改进的多铁性的基于BiFeO3（BFO）的双层薄膜的详细研究。使用Ba0.7Sr0.3TiO3（BSTO）作为缓冲层，获得无杂质相的BFO膜。并且发现双层膜的漏电流通过BFO层的La和Mn的共掺杂而有效地减小。此外，在Bi0.9La0.1Fe0.95Mn0.05O3（BLFMO）/ BSTO薄膜中观察到磁电响应和铁电畴。我们还研究了BSTO-Ni0.8Zn0.2Fe2O4（NZFO）缓冲层对BLFMO膜的多铁性能和表面形态的影响。已经发现，BSTO-NZFO复合膜可以显着增强BLFMO膜的磁和磁电性能。特别地，与BLFMO / BSTO-膜相比，BLFMO / BSTO-NZFO膜具有更高的矫顽力值。

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