MIT researchers map the atomic structure of relaxor ferroelectrics

Tue, 05 May 2026 06:06:00 +0200

Researchers at MIT have for the first time mapped the three-dimensional atomic structure of relaxor ferroelectrics, a type of material critical for technologies like ultrasound imaging, microphones, and sonar systems. Previously, these materials' internal structures were difficult to observe, leading scientists to rely on incomplete models. Using a method called multi-slice electron ptychography (MEP), the team was able to directly visualize how electric charges are distributed at the nanoscale, revealing patterns and chemical disorder not considered in prior studies. Their findings showed that regions of different polarization are smaller than previously predicted, which allows for more accurate modeling and improved predictions of material properties. By merging experimental observations with simulations, the researchers refined models that could inform the design of future computing systems, energy devices, and advanced sensors. The study highlights the power of advanced imaging tec