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

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.

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Guangyong Xu, H. Hiraka, G. Shirane, Jiefang Li, Junling Wang, D. Viehland. 2005-01-27. Low Symmetry Phase in (001) BiFeO$_3$ Epitaxial Constrained Thin Films. https://doi.org/10.1063/1.1924891

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