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

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

arxiv: cond-mat/0501675 · v1 · submitted 2005-01-27 · ❄️ cond-mat.mtrl-sci

Low Symmetry Phase in (001) BiFeO₃ Epitaxial Constrained Thin Films

Guangyong Xu , H. Hiraka , G. Shirane , Jiefang Li , Junling Wang , D. Viehland This is my paper

classification ❄️ cond-mat.mtrl-sci

keywords thinepitaxialphasebifeofilmfilmsbeenbulk

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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.

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Low Symmetry Phase in (001) BiFeO₃ Epitaxial Constrained Thin Films

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