奇异金属：挑战电学理论的导体

Metals that conduct electricity in a bizarre way are forcing us to rethink how electricity flows, finds Jon Cartwright I N THE mid-1980s, an unexpected discovery sparked one of the most frenzied episodes in scientific history. The finding in question was of materials that turned into superconductors – materials that conducted electricity with zero resistance – at much higher temperatures than had ever been seen before. Almost overnight, labs the world over shelved their existing research programmes and jumped on the bandwagon to find other examples. Newspapers heralded an impending age of lossless power transmission, floating trains and extraordinary supercomputers. A Nobel prize was handed out within a year. …