downwardsfromzero
Boundary condition
RETRACTED ARTICLE: Room-temperature superconductivity in a carbonaceous sulfur hydride - Nature
Room-temperature superconductivity is observed in a photochemically synthesized ternary carbonaceous sulfur hydride system at 15 °C and 267 GPa.
www.nature.com
Superconductivity was achieved in a C-H-S system at around 15°C, albeit a pressure in the region of 270GPa, in a tiny sample between two diamond anvils. Sulfur forms a 'superhydride' in this pressure range and apparently, when doped with methane, this approximates some of the properties that might be displayed by metallic hydrogen.