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Domain Selectivity in BiFeO3 Thin Films by Modified Substrate Termination

机译:BiFeO3薄膜中基体选择性修饰对区域选择性的影响

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摘要

Ferroelectric domain formation is an essential feature in ferroelectric thin films. These domains and domain walls can be manipulated depending on the growth conditions. In rhombohedral BiFeO3 thin films, the ordering of the domains and the presence of specific types of domain walls play a crucial role in attaining unique ferroelectric and magnetic properties. In this study, controlled ordering of domains in BiFeO3 film is presented, as well as a controlled selectivity between two types of domain walls is presented, i.e., 71 degrees and 109 degrees, by modifying the substrate termination. The experiments on two different substrates, namely SrTiO3 and TbScO3, strongly indicate that the domain selectivity is determined by the growth kinetics of the initial BiFeO3 layers.
机译:铁电畴的形成是铁电薄膜的基本特征。可以根据生长条件来操纵这些畴和畴壁。在菱形BiFeO3薄膜中,畴的顺序和特定类型的畴壁的存在在获得独特的铁电和磁性方面起着至关重要的作用。在该研究中,提出了BiFeO 3膜中畴的受控排序,并提出了通过修饰衬底端接而在两种类型的畴壁之间的受控选择性,即71度和109度。在两种不同的基底(即SrTiO3和TbScO3)上进行的实验强烈表明,畴的选择性取决于初始BiFeO3层的生长动力学。

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  • 来源
    《Advanced Functional Materials》 |2016年第17期|2882-2889|共8页
  • 作者单位

    Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands;

    Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands;

    Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands;

    Univ Antwerp, EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;

    Univ Antwerp, EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;

    Univ Antwerp, EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;

    Univ Antwerp, EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;

    Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands;

    Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands;

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