In 2018, physicists showed that something interesting
happens when two sheets of the nanomaterial graphene are placed on
top of each other. When one layer is rotated to a “magic angle” of
around 1.1 degrees with respect to the other, the system becomes a
superconductor—meaning it conducts electricity with zero
resistance. Even more exciting, there was evidence that it was an
unconventional form of superconductivity—a type that can happen at
temperatures well above absolute zero, where most superconducting
materials function.
Research finds surprising electron interaction in
‘magic-angle’ graphene
