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<113>c晶带轴下Ba(B'1/3B″2/3)O3钙钛矿B位1∶2有序结构的透射电镜表征

马翩翩 刘观福 乔茵 徐人豪

马翩翩, 刘观福, 乔茵, 徐人豪. <113>c晶带轴下Ba(B'1/3B″2/3)O3钙钛矿B位1∶2有序结构的透射电镜表征[J]. 分析测试技术与仪器, 2022, 28(2): 113-117. doi: 10.16495/j.1006-3757.2022.02.001
引用本文: 马翩翩, 刘观福, 乔茵, 徐人豪. <113>c晶带轴下Ba(B'1/3B″2/3)O3钙钛矿B位1∶2有序结构的透射电镜表征[J]. 分析测试技术与仪器, 2022, 28(2): 113-117. doi: 10.16495/j.1006-3757.2022.02.001
MA Pian-pian, LIU Guan-fu, QIAO Yin, XU Ren-hao. Characterization of B-Site 1∶2 Ordering Structure for Ba(B′1/3B″2/3)O3 Perovskites Along <113>c Zone Axis by Transmission Electron Microscopy[J]. Analysis and Testing Technology and Instruments, 2022, 28(2): 113-117. doi: 10.16495/j.1006-3757.2022.02.001
Citation: MA Pian-pian, LIU Guan-fu, QIAO Yin, XU Ren-hao. Characterization of B-Site 1∶2 Ordering Structure for Ba(B′1/3B″2/3)O3 Perovskites Along <113>c Zone Axis by Transmission Electron Microscopy[J]. Analysis and Testing Technology and Instruments, 2022, 28(2): 113-117. doi: 10.16495/j.1006-3757.2022.02.001

<113>c晶带轴下Ba(B'1/3B″2/3)O3钙钛矿B位1∶2有序结构的透射电镜表征

doi: 10.16495/j.1006-3757.2022.02.001
基金项目: 

国家自然科学基金 51702290

详细信息
    作者简介:

    马翩翩(1989-),女,副教授,从事材料科学的研究,E-mail: pianpianma@zstu.edu.cn

  • 中图分类号: TN16;TB321

Characterization of B-Site 1∶2 Ordering Structure for Ba(B′1/3B″2/3)O3 Perovskites Along <113>c Zone Axis by Transmission Electron Microscopy

Funds: 

National Science Foundation of China 51702290

  • 摘要: 提出了通过透射电子显微镜表征Ba(B′1/3B″2/3)O3钙钛矿(B′ = Zn2+、Mg2+、Co2+或Ni2+B″ = Ta5+或Nb5+)B位1∶2有序结构时可采用的一个新的晶带轴(< 113>c),并首次研究了 < 113>c带轴下有序钙钛矿的原子架构. 在 < 113>c晶带轴下,选区电子衍射(SAED)中的±1/3{112}型超晶格斑点揭示了钙钛矿的1∶2有序结构. 对应的高分辨电子衍射(HRTEM)图像清楚地显示了有序畴的大小和原子结构. 高分辨图像中的成分衬度与原子结构非常匹配,进一步证实了沿 < 113>c带轴下的1∶2有序结构.
  • 图  1  Ba(B′1/3B″2/3)O3钙钛矿的晶体结构(a) 无序排列,(b) 1∶2有序排列,示意图显示了沿不同投影的原子有序排列结构:<111>c、<110>c和<113>c

    Figure  1.  Crystal structure of (a) disordered and (b) 1∶2 ordered of Ba(B′1/3B″2/3)O3 perovskites Schematic diagrams showing the atomic architectures of ordered structure along different projections: <111>c, <110>c and <113>c

    图  2  沿[113]c带轴下BCZN样品的SAED(a)和HRTEM(b) 图像

    Figure  2.  (a) SAED pattern and (b) HRTEM image viewed along [113]c zone axis for BCZN sample

    图  3  (a) 沿[113]c带轴的详细有序结构分析, (b) 标记区域的更高放大晶格图像,插图显示了相应的原子结构

    Figure  3.  (a) Detailed ordering structure analysis along [113]c zone axis and (b) higher amplification lattice image of marked area, inset shows corresponding atomic architecture

    表  1  Ba(B′1/3B″2/3)O3钙钛矿沿不同区域轴的排序特征总结

    Table  1.   Summary of ordering features for Ba(B′1/3B″2/3)O3 perovskites along various zone axises

    带轴 超晶格点 超晶格间距/nm 可见畴比例 参考文献
    <110>c ±1/3{111} 0.71 1/2 [19]
    <111>c ±1/3{112} 0.50 1/4 [19]
    <110>c ±1/3{111} 0.71 1/4 [19]
    <113>c ±1/3{112} 0.50 1/6 本工作
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-05-20
  • 修回日期:  2022-05-26
  • 网络出版日期:  2022-07-07
  • 刊出日期:  2022-06-30

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