Semimetals are High Conductors

Researchers in China and at UC Davis have measured high conductivity in very thin layers of niobium arsenide, a type of material called a Weyl semimetal. The material has about three times the conductivity of copper at room temperature, said Sergey Savrasov, professor of physics in the UC Davis College of Letters and Science. Savrasov is a coauthor on the paper published March 18 in Nature Materials. The Weyl semimetal state is induced when the opposing motions of the electro