Electromagnetic connection

Theoreticians at the RIKEN Discovery Research Institute in Wako, and colleagues from the Universities of Chofu and Nagoya have shown that subtle fluctuations in electron spins are the origin of magnetism and superconductivity in sodium cobalt oxide. Their work contrasts with previous studies and demonstrates that both magnetism and superconductivity in the non-hydrated and hydrated forms of the oxide share a common origin. If proved experimentally, the discovery could lead to other superconducting materials with a so-called disconnected Fermi surface.