Scientists Make Ultrathin Superconducting Films
US researchers have developed ultrathin films that when sandwiched together form a superconductor, an advance that could lead to a new class of fast, power-saving electronics. The films can be used at relatively high temperatures for superconductors, making them easier to handle and produce, they said on Wednesday, October 8, 2008. If cooled to the material's critical operating temperature, the superconductors have no resistance to the flow of electrical current, unlike ordinary electrical wires, which can eventually overheat.