Give double-layer graphene a twist and it superconducts
A ‘magic angle’ lets electrons flow freely
![graphene](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/03/030818_EC_superconductive-graphene_main.jpg?fit=860%2C460&ssl=1)
DOUBLE UP A device made of two layers of graphene (illustrated) can conduct electricity without resistance when one layer is rotated relative to the other.
Theasis/istockphoto