Construction of the misfit strain–temperature phase diagrams of epitaxial BiFeO3 thin film

作者: H. Ma , L. Chen

DOI: 10.1016/J.COMMATSCI.2008.01.022

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摘要: Abstract A nonlinear phenomenological theory was described for the epitaxial BiFeO3 (BFO) thin films with single domain structure. With consideration of mechanical substrate effect, “misfit strain–temperature” phase diagram is constructed BFO film by numerical calculations. It found that polarization instabilities result in formation new states forbidden bulk crystals, which has been observed experiments.

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