Designer heterostructure provides path to low-energy electronics

  • Designer heterostructure is a potential high-temperature QAHE, where a topological material is sandwiched between two ferromagnets

A Monash University-led research team has discovered that a structure comprising an ultra-thin topological insulator sandwiched between two 2D ferromagnetic insulators becomes a large-bandgap quantum anomalous Hall insulator.

Such a heterostructure provides an avenue towards viable ultra-low energy future electronics, or even topological photovoltaics.