[strig]

Achieved at 267 GPa, 15 deg C.

Paper: https://www.nature.com/articles/s41586-020-2801-z

[Tade0]

"In a diamond anvil" is the "in mice" of superconductivity.

[pfundstein]

Has diamond anvil superconductivity been achieved with other conductors?

[bufferoverflow]

Yes, many times, but at significantly lower temperatures.

https://www.chemistryworld.com/news/hydrogen-superconductivi...