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首页> 外文期刊>Crystal growth & design >Dynamic Evolution of Polar Regions in KTa0.56Nb0.44O3 near the Para-Ferroelectric Phase Transition
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Dynamic Evolution of Polar Regions in KTa0.56Nb0.44O3 near the Para-Ferroelectric Phase Transition

机译：kTA0.56nb0.44O3近极近极型近铁电相转变的动态演变

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摘要

The evolution of domains, which reveals the special structure in the vicinity of the para-ferroelectric phase transition, is the key to explaining the excellent properties of ferroelectric materials. However, although existing studies offer insight into the process of the para-ferroelectric phase transition, questions remain regarding the intermediate structure in the order-disorder state. To investigate this phenomenon, we studied the stability and intensity of polarization for the temperature-dependent microstructure, deduced from the vibrations of ions. The evolution of polarization and orientation in the polar regions is investigated through the vibrations of the deformation of the octahedral units. In addition, the intensity and full width at half-maximum (fwhm) of the B-1+E(3TO) mode revealed the stability of polar regions in the dynamic process, which differentiates the static state and dynamic state. Such findings will have a significant impact in the field of property manipulation.
机译：域的演变，揭示了对铁电相转变附近的特殊结构，是解释铁电材料优异性能的关键。然而，尽管现有的研究提供了对阶铁电相转变的过程的深入，但问题仍然存在于秩序障碍状态下的中间结构。为了研究这种现象，我们研究了从离子的振动中推断出温度依赖性微观结构的稳定性和强度。通过八面体单元的变形的振动来研究极化区域中的偏振和取向的演变。另外，B-1 + E（3To）模式的半最大（FWHM）处的强度和全宽显示动态过程中极性区域的稳定性，其区分了静态和动态状态。这些发现将对物业操纵领域产生重大影响。

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  • 来源
    《Crystal growth & design》 |2019年第2期|共7页
  • 作者

    Wang Yu; Meng Xiangda; Tian Hao; Hu Chengpeng; Xu Ping; Tan Peng; Zhou Zhongxiang;

  • 作者单位

    Harbin Inst Technol Dept Phys Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Dept Phys Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Dept Phys Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Dept Phys Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Sch Chem &

    Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Dept Phys Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Dept Phys Harbin 150001 Heilongjiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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