Superconductivity

Science 2.0 (Aug. 19) – Superconductivity with a high critical temperature continues to present a theoretical mystery. While this phenomenon is experimentally well established, no scientist has managed to explain its mechanism. In the late 1990s, the British physicist Anthony Leggett of Illinois proposed a scenario based on the Coulomb energy. Today, researchers at the University of Geneva, Switzerland, in collaboration with Leggett and his group, committed to test this scenario. Their findings challenge Leggett’s conjecture, opening new avenues for the explanation of high critical temperature superconductivity.