05.10.2019
The ultra-relativistic nature of electrons in graphene relates to a topological property of their wave-functions. An international team of physicist, propose a new scanning tunne-ling microscope approach to measure this topological property in the electronic density near an hydrogen atom grafted on the surface. This method which is published in Natu-re magazine on September 30th could be applied to other materials in the search of new topological electronic sates