In materials with complex chemistry, even a small concentration of defects may lead to a heterogeneous mesostructure and properties that differ from what is expected based on the material’s nominal crystal structure. One intriguing outcome of this complexity is the emergence of properties forbidden by the material’s nominal, average symmetry. In this talk, I will discuss doped CeO2, along with a few other materials. Although compositionally simple, doped CeO2 exhibits a complex defect structure that can be manipulated by external electrical and mechanical fields, resulting in symmetry-forbidden electrical polarity and electro-chemo-thermo-mechanical coupling. I will relate these findings to recent reports on a giant electro-mechanical response. Finally, I will provide a general comment on the communication of unusual results in scientific publications.
Accessible medical imaging
In 2020, more than 2.7 million people were diagnosed with cancer in the European Union (EU), whereas 1.3 million people died from cancer. By 2035, the number of cancer cases is expected to increase by 24%, making cancer the leading cause of death in the EU. Currently,...
