New Perspectives for Energy Storage
Tilted dipoles enhance the versatility of antiferroelectrics
- von Juliana Fischer
- 15.04.2026
Antiferroelectrics are considered promising materials for energy applications. Within these materials, electric dipoles are typically aligned in exact opposition, resulting in no net polarization and an externally neutral appearance. A research team led by Professor Dennis Meier has now shown that this order can be slightly tilted in certain systems. What may seem like a minor deviation opens up new physical properties and potential applications. The findings were published in Nature Nanotechnology.
Antiferroelectrics can be visualized as arrays of tiny dipoles pointing in opposite directions. This perfect anti-alignment ensures stability but limits functionality, as positive and negative poles cancel each other out. However, a different behaviour emerges in a family of borates: in K₃[Nb₃O₆(BO₃)₂], the dipoles are not perfectly opposed but slightly tilted—a subtle change with significant consequences.
“Even a minimal tilt in the dipole arrangement can fundamentally alter the electrical properties,” says Dennis Meier of the University of Duisburg-Essen. “This opens up new opportunities to tailor antiferroelectrics for applications in energy storage and electronic devices.”
The international team investigated how this unusual ordering arises within the crystal structure. As in many materials, regions with differently oriented dipoles—known as domains—form. Due to the slight misalignment, these domains and their boundaries exhibit additional properties previously thought to be incompatible with antiferroelectric order. These include, for example, charged interfaces, which had until now been associated primarily with ferroelectrics, where dipoles align in parallel.
In this way, the researchers effectively combine the advantages of two material classes. Such combinations are considered key to the development of more powerful energy storage systems, multifunctional sensors, and advanced electronic components.
Computational modelling helped to explain the observed behaviour: two distinct atomic motions interact to produce the unusual combination of structural stability and functional flexibility. This insight provides, for the first time, a blueprint for designing new materials with comparable properties.
The discovery highlights that antiferroelectrics are far more adaptable than previously assumed. Even subtle changes in dipole arrangement can enable entirely new functionalities. From energy-efficient capacitors to highly precise electronic components, tilted dipoles could play a central role in future technologies.
Further Information
Full article: https://www.nature.com/articles/s41565-026-02139-8
Prof. Dr. rer. nat. Dennis Meier, University of Duisburg-Essen Faculty of Physics and University Alliance Ruhr RC Future Energy Materials and Systems, dennis.meier@uni-due.de