Tailoring domain structure through manganese to modify the ferroelectricity, strain and magnetic properties of lead-free BiFeO3-based multiferroic ceramics
Tailoring domain structure through manganese to modify the ferroelectricity, strain and magnetic properties of lead-free BiFeO3-based multiferroic ceramics
复制标题
通过锰调整磁畴结构来改变无铅 BiFeO3 基多铁陶瓷的铁电性、应变和磁性
DOI：
10.1016/j.jallcom.2018.01.036
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发表时间：
2018-04-05
影响因子：
6.2
通讯作者：
Dong, Xianlin
中科院分区：
文献类型：
--
作者：
Liu, Ningtao;Liang, Ruihong;Dong, Xianlin
采用非淬火固相反应法制备了具有典型钙钛矿结构的锰改性bifeo3基陶瓷。深入研究了锰的加入对铁电、应变、磁性和畴结构的影响。Mn掺入后，平均负应变从0.02%左右显著增加到0.10%左右。压电响应力显微镜（PFM）分析表明，Mn离子对铁电畴具有明显的调谐作用，增加了非180度铁电畴的数量。拉曼光谱表明，铁电畴的形成和磁性能的增强主要是由于Mn的加入增强了八面体的畸变。我们的工作有助于更好地理解锰改性bfo基多铁陶瓷的畴结构与宏观性能之间的关系。(C) 2018 Elsevier B.V.版权所有
Manganese-modified BiFeO3-based ceramics with typical perovskite structure were fabricated by solid-state reaction method with non-quenched processing. The effects of Mn addition on ferroelectric, strain, magnetic properties as well as domain structure were intensively investigated. The average negative strain significantly increased from similar to 0.02% to similar to 0.10% after Mn incorporation. Piezoresponse force microscope (PFM) analysis revealed that Mn ions can tune ferroelectric domain heavily, and increase the amount of non-180 degrees ferroelectric domain. Raman spectra demonstrated that the formation of ferroelectric domain and enhanced magnetic properties mainly resulted from the strengthened distortion of octahedral due to Mn addition. Our work provides a better understanding of the correlation between the domain structure and macro-properties in Mn-modified BFO-based multiferroic ceramics. (C) 2018 Elsevier B.V. All rights reserved.