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EPFL researchers have made a major discovery about the structure of barium titanate — a material used in day-to-day objects. The researchers’ findings now question the prevailing concepts on the displacement of the material’s atoms.
Emad Oveisi in front of the “Titan-Themis” microscope © Alain Herzog / 2021 EPFL EPFL scientists have made an important discovery about the structure of barium titanate, a material used in everyday objects. Their findings refute existing theories on the displacement of the material’s atoms. Barium titanate is a ferroelectric material used in nearly all electronic devices – computers, smartphones and even electric cars. It’s used to make the sensors and capacitors they run on, for example. “A single smartphone generally has around 700 capacitors containing barium titanate, and tri...