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Huajun Liu, Ping Yang, Kui Yao, Khuong Phuong Ong, Ping Wu and John Wang Origin of a Tetragonal BiFeO3 Phase with a Giant c/a Ratio on SrTiO3 Substrates Advanced Functional Materials 22

Version of Record online: 21 DEC 2011 | DOI: 10.1002/adfm.201101970

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A tetragonal BiFeO3 phase with a giant c/a ratio is successfully developed on SrTiO3 substrates with low compressive misfit strain. It is demonstrated that the parasitic β-Bi2O3 phase plays a critically important role in inducing the formation of the super-tetragonal BiFeO3 phase on SrTiO3 substrates, providing a new route that does not involve strain engineering.

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