https://www.mpg.de/13512517/superconductivity-superconductor-room-temperature
Superconductivity at minus 23 degrees Celsius and high pressure | Max-Planck-Gesellschaft
At minus 23 degrees Celsius and very high pressure, lanthanum hydride becomes superconductors, as a team led by M. Eremets at the Max Planck Institute for...
23 degrees celsius