Low Symmetry Phase in (001) BiFeO$_3$ Epitaxial Constrained Thin Films

Guangyong Xu; H. Hiraka; G. Shirane; Jiefang Li; Junling Wang; D. Viehland

doi:10.1063/1.1924891

Low Symmetry Phase in (001) BiFeO$_3$ Epitaxial Constrained Thin Films

Materials Science 2009-11-11 v1

Authors: Guangyong Xu , H. Hiraka , G. Shirane , Jiefang Li , Junling Wang , D. Viehland

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Abstract

The lattice of (001)-oriented BiFeO $_3$ epitaxial thin film has been identified by synchrotron x-ray diffraction. By choosing proper scattering zones containing the fixed (001) reflection, we have shown that low-symmetry phases similar to a $M_A$ phase exist in the thin film at room temperature. These results demonstrate a change in phase stability from rhombohedral in bulk single crystals, to a modified monoclinic structure in epitaxial thin films.

Keywords

BiFeO3 epitaxial thin films low-symmetry phase synchrotron x-ray diffraction monoclinic structure

Cite

@article{arxiv.cond-mat/0501675,
  title  = {Low Symmetry Phase in (001) BiFeO$_3$ Epitaxial Constrained Thin Films},
  author = {Guangyong Xu and H. Hiraka and G. Shirane and Jiefang Li and Junling Wang and D. Viehland},
  journal= {arXiv preprint arXiv:cond-mat/0501675},
  year   = {2009}
}

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