Instanz: TeilenTeilen:Topological insulators advance towards practical applicationsSebastian Hofmann Presse- und ÖffentlichkeitsarbeitJulius-Maximilians-Universität Würzburg23.07.2026 12:48Researchers at the University of Würzburg have succeeded in detecting exceptionally robust electrical transport in a topological insulator. Hall resistance, obtained by dividing this voltage by the current, increases as the magnetic field strength increases. What makes topological insulators special for metrologyA particular type of topological insulator known as a 'magnetic topological insulator' can exhibit a unique kind of Hall effect known as the quantum anomalous Hall effect (QAHE). These two factors currently limit the practical applications of the QAHE in resistance measurement technology. “Our method shows that the topological contribution is fundamentally robust enough for practical applications”, says Fijalkowski.