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Denis Schütz, Marco Deluca, Werner Krauss, Antonio Feteira, Tim Jackson and Klaus Reichmann Lone-Pair-Induced Covalency as the Cause of Temperature- and Field-Induced Instabilities in Bismuth Sodium Titanate Advanced Functional Materials 22

Version of Record online: 13 MAR 2012 | DOI: 10.1002/adfm.201102758

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Bismuth sodium titanate (BNT)-derived materials show extended strain under applied electric fields, surpassing that of lead zirconate titanate (PZT), which is the most commonly used piezoelectric. The mechanism of the extended strain is, however, poorly understood, in particular its structural and chemical origins. The results presented clarify the causes of the extended strain and the peculiar temperature-dependent properties encountered in this system.

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