Researchers move forward in explaining atomic causes of high temperature superconductivity
(PHYSorg.com Physics)

During the last five years, few scientists have successfully employed very high pressures in order to produce metal hydrides, rich in hydrogen, which become superconductive around -20 degrees Celsius. This so-called transition temperature of metal hydrides is therefore considerably higher than that of other materials, which become superconductive only at -200 degrees Celsius.