Listening to electrical crackle yields some answers to cuprate superconductor puzzle
Munich and Utrecht team probes the pseudogap, where electrons appear to vanish above the superconducting temperature
A team of physicists led by Milan Allan of Ludwig Maximilian University of Munich and Ingmar Swart of Utrecht University has found some answers to the decades-old question of why cuprates superconduct at comparatively high temperatures, by listening to the faint electrical crackle of current flowing into the material.