1D topological insulator found at edges of germanene nanoribbons
1D topological insulator found at edges of germanene nanoribbons
Utrecht - Researchers from Utrecht University and the University of Twente have probed the limits of topological insulation. Making ever-thinner nanoribbons of germanene, the germanium equivalent of the 2D material graphene, they observed that the material stopped being a 2D topological insulator at a width of about...