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Ricardo J. Zednik, Anbusathaiah Varatharajan, Mark Oliver, Nagarajan Valanoor and Paul C. McIntyre Mobile Ferroelastic Domain Walls in Nanocrystalline PZT Films: the Direct Piezoelectric Effect Advanced Functional Materials 21

Version of Record online: 4 JUL 2011 | DOI: 10.1002/adfm.201100445

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Pure biaxial mechanical stress is applied to nanocrystalline PZT films, leading to complete orientation switching of ferroelastic domains. The nanometer-scale mechanisms that underlie the direct piezoelectric effect via local domain switching are identified and indicate that bulk-like ferroelastic behavior can extend to nanocrystalline films in the absence of substrate clamping.

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