October 17, 2013

A Grand Unified Theory of Exotic Superconductivity?


Scientists introduce a general theoretical approach that describes all known forms of high-temperature superconductivity and their "intertwined" phases

Years of experiments on various types of high-temperature (high-Tc) superconductors—materials that offer hope for energy-saving applications such as zero-loss electrical power lines—have turned up an amazing array of complex behaviors among the electrons that in some instances pair up to carry current with no resistance, and in others stop the flow of current in its tracks. The variety of these exotic electronic phenomena is a key reason it has been so hard to identify unifying concepts to explain why high-Tc superconductivity occurs in these promising materials.