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Marina Tyunina, Lide Yao, Maxim Plekh, Juhani Levoska and Sebastiaan van Dijken Epitaxial Ferroelectric Heterostructures with Nanocolumn-Enhanced Dynamic Properties Advanced Functional Materials 23

Version of Record online: 30 AUG 2012 | DOI: 10.1002/adfm.201201528

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The possibility to tailor ferroelectricity by controlling epitaxial strain in thin films and heterostructures of complex metal oxides is well established. It is demonstrated that apart from this mechanism, 3D film growth during heteroepitaxy can be employed to favor specific domain configurations that lead to step-like polarization switching and a giant nonlinear dielectric response in sub-switching AC electric fields.

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