The application of large enough magnetic fields results in the disruption of superconducting states in materials even at drastically low temperature, thereby changing them directly into insulators — or so was traditionally thought. Now, scientists at Tokyo Tech, The University of Tokyo and Tohoku University report curious multi-state transitions of these superconductors: going from superconductor to special metal and then to insulator.
Source: EurekaAlert, https://www.eurekalert.org