The first 2D topological insulator that consists of a single element

Nanowerk  May 16, 2023 The scattering of electrons at defects in 2D topological insulators is forbidden due to the unique topological protection mechanism which makes them more energy-efficient than current electronic materials. An international team of researchers (the Netherlands, Japan) made germanene was made from a single element. They melted germanium together with platinum. When the mixture cooled down, a tiny layer of germanium atoms arranged into a honeycomb lattice on top of the germanium-platinum alloy forming germanene. The conducting properties of the material could be switched ‘off’ by applying an electric field. This property is unique for a topological […]