Virginia TechXu, GuangyongHiraka, HaruhiroShirane, GenLi, JiefangWang, J. L.Viehland, Dwight D.2014-02-032014-02-032005-05-01Xu, GY; Hiraka, H; Shirane, G; et al., "Low symmetry phase in (001) BiFeO3 epitaxial constrained thin films," Appl. Phys. Lett. 86, 182905 (2005); http://dx.doi.org/10.1063/1.19248910003-6951http://hdl.handle.net/10919/25263The lattice of (001)-oriented BiFeO3 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. 2005 American Institute of Physics.application/pdfen-USIn CopyrightPolarizationPhysicsArticle - Refereedhttp://scitation.aip.org/content/aip/journal/apl/86/18/10.1063/1.1924891https://doi.org/10.1063/1.1924891