Abstract
We propose here a modified phenomenological model for the flexoelectric effects in solid dielectrics. These effects have been investigated from the viewpoint of equilibrium thermodynamics, and the mathematical expressions of their coupling coefficients are given. Finally, the possibilities of fabricating a new kind of flexoelectric piezoelectric composites by exploiting the flexoelectric charge separation mechanism are discussed.
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Acknowledgment
The research reported here was sponsored by the Defence Advanced Research Projects Agency (DARPA) under grant No. N00014-05-1-0898.