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Kaushik Bhattacharya
California Institute of Technology
Ferroelectric materials have a spontaneous polarization below their Curie Temperature. Typically, this polarization direction is not unique: it can be any of a class of symmetry related directions. Further, they forms domains which are regions with different polarization. A number of interesting properties of ferroelectrics result from a reorganization of the domains under applied electric field or applied stress. This process is rather complex in polycrystalline ceramics due to inter-granular constraints. This talk with report on recent research with Dr. JiangYu Li on understanding the domain patterns and effective behavior of ferroelectric ceramics.
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