Domain tuning in mixed-phase BiFeO3 thin films using vicinal substrates

Lu You; Shintaro Yasui; Xi Zou; Hui Ding; Zuhuang Chen; Weigang Chen; Lang Chen; Hiroshi Funakubo; Junling Wang

doi:10.1063/1.4717986

Domain tuning in mixed-phase BiFeO3 thin films using vicinal substrates

Materials Science 2015-06-04 v1

Authors: Lu You , Shintaro Yasui , Xi Zou , Hui Ding , Zuhuang Chen , Weigang Chen , Lang Chen , Hiroshi Funakubo , Junling Wang

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Abstract

The structural and ferroelectric domain variants of highly-strained BiFeO3 films grown on vicinal LaSrAlO4 substrates were studied by piezoelectric force microscopy and high-resolution X-ray reciprocal space mapping. Through symmetry breaking of the substrate surface, ferroelastic domain variants in the highly-strained MC phase BiFeO3 can be greatly reduced. Single-domain film can be obtained on substrates with large miscut angle, which is accompanied by the reduction of structural variants in the mixed-phase nanodomains. These findings lead to better understanding of the phase evolution and polarization rotation process in the strain-driven morphotropic phase system.

Keywords

thin films ferroelectric thin films thin film magnetism

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@article{arxiv.1203.0256,
  title  = {Domain tuning in mixed-phase BiFeO3 thin films using vicinal substrates},
  author = {Lu You and Shintaro Yasui and Xi Zou and Hui Ding and Zuhuang Chen and Weigang Chen and Lang Chen and Hiroshi Funakubo and Junling Wang},
  journal= {arXiv preprint arXiv:1203.0256},
  year   = {2015}
}

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15 pages, 4 figures

Domain tuning in mixed-phase BiFeO3 thin films using vicinal substrates

Abstract

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