A graphene superconductor that plays more than one tune

Researchers have developed a graphene device that's thinner than a human hair but has a depth of special traits. It easily switches from a superconducting material that conducts electricity without losing any energy, to an insulator that resists the flow of electric current, and back again to a superconductor -- all with a simple flip of a switch.

from Top Technology News -- ScienceDaily https://ift.tt/32z4d36