Trilayer Graphene Could Decode Secrets of High-Temperature Superconductivity
The breakthrough
discovered
that when an ultrathin carbon layer, known as graphene, is stacked together and twisted to a 'magic angle,' that novel double-layered structure changes into a superconductor, enabling electricity to flow without energy waste or any kind of resistance.
Artist rendition of twisted trilayer graphene. Image Credit: Polina Shmatkova and Margarita Davydova.
In what seemed to be a literal twist, Harvard University researchers have now taken that superconducting system to a whole new level by adding a third layer and rotating it, paving the way for continued developments in graphene-based superconductivity.