FLAME-inars
Our Speakers

10th February 2022 – Talk 20:

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

Abstract

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.

  • Bachelor’s degree in Materials Science and Engineering in Nanjing University of Science and Technology, China.
  • Master’s degree in Materials Science in Technical University of Darmstadt, Germany and master thesis on the study of the prototype perovskite BaTiO3 under the supervision of Professor Andreas Klein.
  • Currently pursuing a PhD degree in Materials Science in Technical University of Darmstadt, Germany, in the Flame project under the supervision of Professor Hans-Joachim Kleebe and Professor Leopoldo Molina-Luna.

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.

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