Atomistic Studies of Lead Containing and Lead Free Antiferroelectrics
Hui Ding Department of Materials- and Geosciences Geomaterial Science / Advanced Electron Microscopy Division Technical University of Darmstadt
In this talk, I will present a literature review combined with our own investigations of atomically resolved structure of antiferroelectrics, utilising advanced high resolution transmission electron microscopy techniques, paying chief attention to the prototype PbZrO3 and NaNbO3. Short introduction of conventional transmission electron microscopy and high angle annular dark-field and annular bright-field imaging modes are also given. The displacement and polarization mapping yields a modernized understanding of antiferroelectric materials, which is significantly different from the well-accepted models established by Sawaguchi.
About the FLAME-inars
The FLAME-inars are organized by the collaborative project FLAME at TU Darmstadt, in which electronic-structure-property relationships are being developed and exploited to realize novel lead-free antiferroelectric compounds. The seminars will gather experts in processing, characterization and theory to discuss materials and applications, bulk and thin films, fundamental properties, electronic structure & defects, and related aspects.