Cold connection: A Josephson junction in an ultracold 2D Fermi gas. (Courtesy: AG Moritz) Researchers in Germany have created a new platform for studying quantum phenomena by realizing a Josephson ...
Physicists in the US are the first to have created a locally-gated p-n junction in graphene, which is a 2D sheet of carbon just one atom thick. The charge density in the device is controlled by ...