In 2005, condensed matter physicists Charles Kane and Eugene Mele considered the fate of graphene at low temperatures. Their work led to the discovery of a new state of matter dubbed a “topological insulator,” which would usher in a new era of materials science.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/5d015261168de.jpg)
Source:
https://phys.org/news/2019-06-physicists-closer-graphene-based-topological-insulator.html